Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of nitric oxide is produced by the reaction of 6.85 g of oxygen gas
Answers
The chemical equation for the reaction between ammonia and oxygen gas can be given as follows:4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)Here, we can observe that 4 moles of ammonia react with 5 moles of oxygen gas to produce 4 moles of nitric oxide and 6 moles of water.
From the given data, we can calculate the amount of nitric oxide produced by 6.85 g of oxygen gas.To do so, we need to determine the moles of oxygen gas present first.Moles of oxygen gas = mass of oxygen gas / molar mass of oxygen gas
Molar mass of oxygen gas (O2) = 2 × 16.00 g/mol
= 32.00 g/mol
Moles of oxygen gas = 6.85 g / 32.00 g/mol
= 0.214 mol
Now, according to the balanced chemical equation, 5 moles of oxygen gas react to produce 4 moles of nitric oxide. Therefore, 0.214 mol of oxygen gas will produce,
Mass of nitric oxide = moles of oxygen gas × (4/5) × molar mass of nitric oxide
Molar mass of nitric oxide (NO) = 14.01 g/mol
Mass of nitric oxide = 0.214 mol × (4/5) × 14.01 g/mol
= 1.51 g
Thus, 1.51 g of nitric oxide will be produced by the reaction of 6.85 g of oxygen gas.
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Related Questions
K2SO4 (aq) + NaOH (aq)
Answers
Answer:
K₂SO₄(aq) + 2NaOH(aq) → Na₂SO₄(aq) + 2KOH(aq)
Explanation:
The type of reaction is Double Displacement (Metathesis)
Use the References to access Important values if needed for this question. 1. How many MOLECULES of phosphorus triiodide are present in 6.95 grams of this compound? molecules. 2. How many GRAMS of phosphorus triiodide are present in 9.49×10 22
molecules of this compound? grams. Use the References to access important values if needed for this question. a. How many ATOMS of carbon are present in 7.14 grams of carbon tetrafluoride? atoms of carbon . b. How many GRAMS of fluorine are present in 7.51×10 22
molecules of carbon tetrafluoride? grams of fluorine .
Answers
The number of grams of Fluorine in 7.51 × 10²² molecules of Carbon Tetrafluoride is 0.9495 g.
Given,
1. Number of grams of Phosphorus Triiodide = 6.95 g
To find, Number of molecules of Phosphorus Triiodide = ?
First we need to find the molar mass of the compound Phosphorus Triiodide.
Phosphorus Triiodide (PI3)
Molar Mass of PI3 = Molar Mass of P + 3 × Molar Mass of I
= 30.97 + (3 × 126.9)
= 30.97 + 380.7
= 411.67 g/mol
Number of moles of PI3 = Given mass / Molar mass
= 6.95 / 411.67
= 0.01685 mol
One mole of any substance contains Avogadro's number (6.022 × 10²³) of particles (molecules or atoms).
Therefore,
Number of molecules of PI3 = Number of moles × Avogadro's number
= 0.01685 × 6.022 × 10²³
= 1.014 × 10²² molecules
Hence, the number of molecules of phosphorus triiodide present in 6.95 grams of this compound is 1.014 × 10²² molecules.
2. Number of molecules of Carbon Tetrafluoride = 7.51 × 10²² molecules
To find,Number of grams of Carbon Tetrafluoride = ?
a. Number of atoms of Carbon in 7.14 grams of Carbon Tetrafluoride.
To find the number of atoms of carbon, we first need to calculate the number of moles of Carbon Tetrafluoride.
Carbon Tetrafluoride (CF4)
Molar mass of CF4 = Molar Mass of C + 4 × Molar Mass of F
= 12.01 + 4 × 18.99
= 12.01 + 75.96
= 88.97 g/mol
Number of moles of CF4 = Given mass / Molar mass
= 7.14 / 88.97
= 0.080 mol
One mole of Carbon Tetrafluoride (CF4) contains one mole of carbon (C) atoms, i.e. 6.022 × 10²³ carbon atoms. Therefore,
Number of atoms of carbon = Number of moles × Avogadro's number
= 0.080 × 6.022 × 10²³
= 4.82 × 10²² atoms
b. Number of grams of Fluorine in 7.51 × 10²² molecules of Carbon Tetrafluoride.
To find the number of grams of Fluorine, we first need to calculate the number of moles of Carbon Tetrafluoride.
Carbon Tetrafluoride (CF4)
Molar mass of CF4 = Molar Mass of C + 4 × Molar Mass of F
= 12.01 + 4 × 18.99
= 12.01 + 75.96
= 88.97 g/mol
Number of moles of CF4 = Number of molecules / Avogadro's number
= 7.51 × 10²² / 6.022 × 10²³
= 0.0125 mol
In one mole of CF4, there are 4 moles of Fluorine (F). Therefore,
Number of moles of Fluorine = 4 × 0.0125
= 0.050 mol
Molar mass of F = 18.99 g/mol
Number of grams of Fluorine = Number of moles × Molar mass
= 0.050 × 18.99
= 0.9495 g
Hence, the number of grams of Fluorine in 7.51 × 10²² molecules of Carbon Tetrafluoride is 0.9495 g.
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Americium–241 decays into neptunium–237. which correctly describes this process of radioactive decay? an unstable nucleus decays into a more stable nucleus. energy in the nucleus is converted into mass. the strong nuclear force splits the nucleus apart. the atom loses four protons.
Answers
When Americium–241 decays into neptunium–237, an unstable nucleus decays into a more stable nucleus.
What is Radioactive decay?
Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay (α-decay), beta decay (β-decay), and gamma decay (γ-decay), all of which involve emitting one or more particles. The weak force is the mechanism that is responsible for beta decay, while the other two are governed by the electromagnetism and nuclear force. A fourth type of common decay is Electron Capture, in which an unstable nucleus captures an inner electron from one of the electron shells. The loss of that electron from the shell results in a cascade of electrons dropping down to that lower shell, resulting in emission of discrete X-rays from the transitions. A common example is Iodine-125 commonly used in medical settings.Radioactive decay is a stochastic (i.e. random) process at the level of single atoms. According to quantum theory, it is impossible to predict when a particular atom will decay, regardless of how long the atom has existed. However, for a significant number of identical atoms, the overall decay rate can be expressed as a decay constant or as half-life. The half-lives of radioactive atoms have a huge range; from nearly instantaneous to far longer than the age of the universe.The decaying nucleus is called the parent radionuclide (or parent radioisotope), and the process produces at least one daughter nuclide.Except for gamma decay or internal conversion from a nuclear excited state, the decay is a nuclear transmutation resulting in a daughter containing a different number of protons or neutrons (or both). When the number of protons changes, an atom of a different chemical element is created.To learn more about Radioactive decay: https://brainly.com/question/1770619
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isotopes calculations
Answers
The average atomic mass is a weighted average of all the isotopes while the atomic mass is just the sum of the number of protons and the neutrons.
The most common form of the element can be known by the isotope symbol
What is the difference between mass Number and average atomic mass?Mass number and average atomic mass are related to the mass of atoms, but they have different meanings.
Mass number is the total number of protons and neutrons in the nucleus of an atom. It is usually represented by the symbol A. The mass number is an integer value because it is the sum of whole numbers of protons and neutrons.
Average atomic mass, on the other hand, is the weighted average of the masses of all the naturally occurring isotopes of an element, taking into account their abundance. It is usually represented by the symbol A or M.
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pls help i need the Formula
how can you calculate the number of electrons present in a shell? pls help!!! will give brainliest
Answers
Answer:
The maximum number of electrons present in a particular shell is calculated by the formula 2n2, where “n” represents the shell number. For instance, K shell is the first shell and it can hold up to 2(1)2 = 2 electrons. Similarly, L shell is the second shell and it can hold up to 2(2).
4 molecules of hydrogen (H2) react with 2 molecules of oxygen (O2) to produce some amount of water (H2O).
Complete the table below.
Chemical element Number of atoms in the reaction
-H -
-O -
During this reaction, how many molecules of water (H2O) are produced?
Answers
Answer:
2H2+ 02-->2H20
So 4H2 + 202-->4H20
so the answer is 4 water molecules.
Extra points if anyone can help me with those 2
Answers
Answer:
Blank 1 - Microscope
Blank 2 - Cell Theory
Explanation:
Answer:
microscope. and cell theory
Explanation:
with the invention of the microscope. scientists were able to create cell theory
1. 0 g of h_{2}o_{2} solution (30 wt%) was titrated with 22. 143 ml of kmno_{4} solution. What is the molarity of the kmno_{4} solution? Report your answer with three decimal places. Molar mass: H2O2 = 34. 01g/mol Reaction: 2MnO2 + 5H2O2 + 6H+ + 2Mn +2 +502 +8H2O Type your numeric answer and submit
Answers
The molarity of the KMnO4 solution is 0.532 M (rounded to three decimal places).
To calculate the molarity of the KMnO4 solution, we need to use the stoichiometry of the reaction and the volume of the KMnO4 solution used in the titration.
Given:
Mass of H2O2 solution = 1.0 g
Concentration of H2O2 solution = 30 wt% (weight percent)
Volume of KMnO4 solution used = 22.143 mL
Molar mass of H2O2 = 34.01 g/mol
Step 1: Calculate the moles of H2O2 in the solution.
Moles of H2O2 = (Mass of H2O2 solution) / (Molar mass of H2O2)
= 1.0 g / 34.01 g/mol
= 0.0294 mol
Step 2: Calculate the moles of KMnO4 based on the stoichiometry of the reaction.
According to the balanced equation, the ratio of KMnO4 to H2O2 is 2:5.
Therefore, moles of KMnO4 = (Moles of H2O2) * (2/5)
= 0.0294 mol * (2/5)
= 0.01176 mol
Step 3: Calculate the molarity of the KMnO4 solution.
Molarity (M) = (Moles of KMnO4) / (Volume of KMnO4 solution in liters)
= 0.01176 mol / 0.022143 L
= 0.5316 M
Therefore, the molarity of the KMnO4 solution is 0.532 M (rounded to three decimal places).
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You should not attenuate dB by: A. Increasing the distance B. Decreasing the level C. Adding a barrier D. Adding fuzz
Answers
To attenuate sound in decibels, increasing the distance, decreasing the level, or adding a barrier are effective methods. However, D. adding fuzz does not contribute to sound attenuation.
The attenuation of sound in decibels (dB) refers to the reduction in the intensity or level of sound. The factors that affect sound attenuation include distance, level, and barriers. However, adding fuzz does not contribute to sound attenuation.
A. Increasing the distance: As sound travels through the air, its intensity decreases with distance. This is known as the inverse square law, which states that sound intensity decreases by 6 dB for every doubling of the distance from the source.
B. Decreasing the level: Sound attenuation can be achieved by reducing the level or amplitude of the sound waves. This can be done through techniques such as soundproofing, using materials that absorb or reflect sound waves.
C. Adding a barrier: Barriers, such as walls, partitions, or acoustic panels, can obstruct the path of sound waves, resulting in their absorption or reflection. This reduces the sound level and contributes to attenuation.
D. Adding fuzz: Adding fuzz, which refers to a type of soft and fuzzy material, does not have any inherent sound attenuation properties. It is unlikely to absorb or reflect sound waves effectively, and therefore, it does not contribute to sound attenuation.
To attenuate sound in decibels, increasing the distance, decreasing the level, or adding a barrier are effective methods. However, adding fuzz does not contribute to sound attenuation.
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What is the molecular formula of the compound CH2 with molar mass = 42.0 g/mol? A. C2H18 B. C2H4 C. CAHg O D. C3H6
Answers
The molecular formula of the compound CH2 with molar mass = 42.0 g/mol is C₃H₆. Therefore, option D is correct.
What is molar mass ?The term molar mass is defined as the mass in grams of one mole of a substance. The units of molar mass are grams per mole, abbreviated as g/mol.
First, let's find the molar mass of CH₂.
The molar mass CH₂= 12.0 + (2 x 1.01)
= 14.02 g/mol
Now to determine the molecular formula, we need to find the ratio based in the molar masses.
42 / 14.02
= 2.99
≅ 3
Therefore, the ratio is 3, the molecular formula is C₃H₆.
Thus, option D is correct.
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Ammonia (NH3) reacts with oxygen to form nitrogen monoxide and water. All the materials involved in this reaction are gasses. 0.100 moles of each of the reactants are initially introduced to a 5.0-liter reaction vessel. a. What would be the quantity of each gas in the container upon completion of the reaction? b.What would be the partial pressure of each gas on the reaction vessel upon reaction completion if the temperature of the system is 105 degrees C? c. What is the total pressure of all the gases on the reaction vessel at 105 degrees C?
Answers
Answer:
a. 0.02 moles of NH₃, 0 moles of O₂, 0.08 moles of NO, 0.12 moles of H₂O
b. \(P_{NH_3}\) = 12,576.5 Pa, \(P_{NO}\) = 50,306.05 Pa, \(P_{H_2O}\) = 74,459.1 Pa
c. The total pressure is 138,341.64 Pa
Explanation:
a. NH₃ + O₂ → NO + H₂O
The balanced chemical equation is first found to be
4NH₃ + 5O₂ → 4NO + 6H₂O
Therefore, we have;
4 moles of NH₃ reacts with 5 moles of O₂ to form 4 moles of NO and 6 moles H₂O
Dividing by the reactant with the highest number of moles which is 5 moles of oxygen gives;
4/5 moles of NH₃ reacts with 5/5 moles of O₂ to form 4/5 moles of NO and 6/5 moles H₂O
Which is the same as 4/5 moles of NH₃ reacts with 1 mole of O₂ to form 4/5 moles of NO and 6/5 moles H₂O
Multiplying by 0.100 gives;
0.1×4/5 moles of NH₃ reacts with 0.1 mole of O₂ to form 0.1×4/5 moles of NO and 0.1×6/5 moles H₂O
The quantity of each gas in the container upon completion of the reaction is therefore;
(0.1 - 0.1×4/5) = 0.02 moles of NH₃
0 moles of O₂
0.08 moles of NO
0.12 moles H₂O
b. Given that the temperature = 105°C, we have;
PV = nRT
P = nRT/V
Where:
n = Total number of moles = 0.02 + 0.08 + 0.12 = 0.22 moles
R = Universal gas constant = 8.3145 J/(mol·K)
T = Temperature = 105°C = 378.15 K
V = Volume = 5 litre = 0.005 m³
P = 0.22×8.3145×378.15/0.005 = 138,341.64 Pa
From Dalton's law of partial pressure, we have;
Partial pressure Pₓ = Xₓ × P
Where:
Xₓ = Mole fraction
Which gives for ammonia NH₃ with 0.02 moles;
Mole fraction = 0.02/0.22 = 1/11
\(P_{NH_3}\) = 1/11 × 138,341.64 = 12,576.5 Pa
For the 0.08 moles of NO, we have
Mole fraction = 0.08/0.22 = 4/11
\(P_{NO}\) = 4/11 × 138,341.64 = 50,306.05 Pa
For the 0.12 moles H₂O
P = 0.12×8.3145×378.15/0.005 = 74,459.1 Pa
Mole fraction = 0.12/0.22 = 6/11
\(P_{H_2O}\) = 6/11 × 138,341.64 = 74,459.1 Pa
c. The total pressure = 12,576.5 Pa + 50,306.05 Pa + 74,459.1 Pa = 138,341.64 Pa.
You mix 250 ml of 2.1 m hbr with 200 ml of 2.5 m KOH. What is the ph of the resulting solution?
Answers
The pH of the resulting solution when 250 mL of 2.1 M HBr is mixed with 200 mL of 2.5 M KOH is 12.7.
This can be calculated by first finding the moles of each of the reactants, and then using the ICE table to determine the concentration of ions in the solution. The equation for the ICE table is:
[H3O+] x [OH-] = KW, where KW is the ion product of water.The concentration of H3O+ can then be determined by taking the square root of the KW, and the concentration of the OH- can be calculated by dividing the KW by the H3O+ concentration. The pH can then be calculated by taking the negative log of the H3O+ concentration.
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Zn + 2 HCl → ZnCl2 + H2
If 381g of HCl are reacted with 307g of Zn, how many grams of H2 will be produced?
Answers
Answer:
10.1g of H₂ are produced
Explanation:
To solve this question we need, first, to convert the mass of each reactant to moles and, using the chemical reaction, find limiting reactant. With limiting reactant we can find the moles of H2 and its mass:
Moles Zn -Molar mass: 65.38g/mol-:
307g * (1mol / 65.38g) = 4.696 moles
Moles HCl -Molar mass: 36.46g/mol-:
381g HCl * (1mol / 36.46g) = 10.45 moles
For a complete reaction of 10.45 moles of HCl are required:
10.45 moles HCl * (1mol Zn / 2mol HCl) = 5.22 moles Zn
As there are 4.696 moles of Zn, Zn is the limiting reactant
The moles of H₂ produced = Moles of Zn added = 4.696 moles. The mass is-Molar mass H₂ = 2.16g/mol-:
4.696 moles * (2.16g / mol) =
10.1g of H₂ are producedWhich of the following is not a reason childhood friendships are important to development? a. positive relationships provide positive psychological support. b. friends are a child's first chance in learning how to be social with siblings. c. adolescents can use friendships as a way to work out personal problems. d. children can learn what it means to be loyal through their friendships. please select the best answer from the choices provided a b c d
Answers
Chemists can identify the composition of some unknown salts by conducting a flame test. When potassium salts are heated in a flame, a purple color is observed.
This is due to the movement of electrons between energy levels. What is the electron configuration of a potassium atom at ground state?
answer choices
1s2; 2s2; 2p6; 3s2; 3p6; 4d1
1s2; 2s2; 2p6; 3s2;3p6; 3d1
1s2; 2s2; 2d6; 3s2; 3d6; 4s1
1s2; 2s2; 2p6; 3s2; 3p6; 4s1
Answers
A potassium atom's ground state electron configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 4s1.
What substance is electronic configuration 1s2 2s2 2p6 3s2 3p6 4s1?An atom's electron configuration is a picture of how electrons are arranged in relation to orbital shells and subshells. Consequently, this is potassium's electron configuration.
How can you express a whole electron configuration in writing?Making Electron Configurations in Writing. Write the energy level (the period) first, then the subshell that needs to be filled, and finally the superscript, which indicates how many electrons are in that subshell. The atomic number, Z, is the sum of all the electrons.
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I need help with this please! and thank you. if you don't know, don't comment please.
Answers
Answer:
S4O5
Explanation:
Question 1 of 10
Which two types of information are written in an element's box in the periodic
table?
A Atomic mass
B. Nuclear composition
c. Number of electron shells
D. Chemical symbol
SUBMIT
Answers
Answer: c
Explanation:
Answer:
A. Atomic Mass
D. Chemical Symbol
Explanation:
There are generally three types of information. The chemical symbol, the atomic number (the number of protons in the nucleus) and the atomic mass of the element.
With these answer choices A and D are correct.
- 7.5 mL of 3M hydrochloric acid used.
- magnesium ribbon, 2 pieces of 1.4 cm length used.
solve question #3:
In this experiment, it was assumed that the magnesium strip was the limiting reactant. Do calculations to prove this.
Mass of Magnesium strip reacted:
Trial #1 = 0.0153 g
Trial #2 = 0.0117 g
Answers
The question pertains to the determination of the limiting reactant in a chemical reaction between magnesium and hydrochloric acid.
The experiment involves the use of 7.5 mL of 3M hydrochloric acid and two pieces of magnesium ribbon, each 1.4 cm in length. The mass of magnesium reacted in two trials is given, and the objective is to prove that magnesium was the limiting reactant in the reaction. The concept of limiting reactants is important in chemistry, as it determines the amount of product that can be formed in a chemical reaction. T
he determination of the limiting reactant depends on the stoichiometry of the reaction and the amounts of each reactant present. The mass of the product formed can be used to determine the amount of the limiting reactant consumed, and thus to prove which reactant was limiting. Understanding the concept of limiting reactants is important in many areas of chemistry, including materials science, biochemistry, and environmental chemistry.
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Which substance in cigarettes decreases the oxygen-carrying capacity of red blood cells? A. Menthol B. Tar C. Carbon monoxide. D. Nicotine.
Answers
The substance in cigarettes that decreases the oxygen-carrying capacity of red blood cells is carbon monoxide (Option C).
Carbon monoxide is a poisonous gas that has no color or odor. It is given off by burning fuel (as in exhaust from cars or household heaters) and tobacco products. Carbon monoxide prevents red blood cells from carrying enough oxygen for cells and tissues to live.
Thus, carbon monoxide (CO) is a harmful gas present in cigarette smoke. When inhaled, it binds with the hemoglobin in red blood cells more effectively than oxygen does. As a result, less oxygen is transported throughout the body, leading to decreased oxygen-carrying capacity.
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The difference in mass between protons and neutrons is generally regarded as
A) significant.
B) insignificant.
C) unknown.
D) variable.
Answers
The difference in mass between protons and neutrons is generally regarded as B) insignificant.
Protons and neutrons are both subatomic particles found in the nucleus of an atom. They have similar masses, with a proton having a mass of approximately 1.0073 atomic mass units (amu) and a neutron having a mass of about 1.0087 amu. The difference in mass is only around 0.0014 amu, which is considered negligible in most scientific contexts.
This small mass difference is not significant enough to have a substantial impact on the overall properties or behavior of atoms and their nuclei. Both protons and neutrons play crucial roles in maintaining the stability of atomic nuclei, with protons being positively charged and neutrons having no charge. Their combined mass contributes to an atom's atomic mass, which is essential for determining the element's position in the periodic table.
In summary, the mass difference between protons and neutrons is insignificant, as it does not have a notable influence on the characteristics or behavior of atoms. Despite their minor mass difference, both particles are essential components of atomic nuclei and play vital roles in defining the properties of elements. Hence, the correct answer is Option B.
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If Ka of HXO3 is > than Ka of HZO3 at 25°C, then it is most likely that…..
a. X is more electronegative than Z
b. X exhibits a higher oxidation state than Z
c. the H―X bond is weaker than the H―Z bond
d. HXO3(aq) + ZO3−(aq) ↔ XO3−(aq) + HZO3(aq) is reactant-favored at 25°C
e. Z is larger than X
c and d are incorrect
Answers
If Ka of HXO3 is greater than Ka of HZO3 at 25°C, then it is most likely that:
a. X is more electronegative than Z
A higher Ka value indicates that HXO3 is a stronger acid than HZO3. In stronger acids, the bond between hydrogen and the electronegative element is more polar, allowing hydrogen to be more easily released as a proton (H+). Therefore, it is likely that X is more electronegative than Z, making HXO3 a stronger acid.
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what is the molar mass of iron (III) sulfate
Answers
Answer:
399.88 g/mol
Explanation:
Iron(III) sulfate, is the chemical compound with the formula Fe₂(SO₄)₃. Usually yellow, it is a salt and soluble in water. A variety of hydrates are also known. Solutions are used in dyeing as a mordant, and as a coagulant for industrial wastes.
explain why in a gas of n molecules, the number of molecules having speeds in the finite interval v to v δv δv is δn=n∫v δvvf(v)dvδn=n∫vv δvf(v)dv .
Answers
The most probable speed is \(V_{mp}=401m/s\) and fraction of particles is f(\(V_{mp}\))=\(2.46 \times 10^{-21}\)
To understand the roots of the ideal gas laws, one must understand the kinetic molecular theory of gases. According to the kinetic molecular theory, gaseous particles are always moving randomly; each particle moves at a different speed while interacting with other particles and changing directions. The speed that reveals the highest amount of gas molecules moving at a given time is the one that is considered to be the most likely. The greatest value on the Maxwell's distribution map represents the speed that is most likely. The most probable speed is calculated by multiplying the total number of molecules by the sum of their individual speeds. The square root of the average velocity-squared of the molecules in a gas is what is known as the root-mean-square speed, which is used to determine how fast particles in a gas are moving.
The most probable speed is \(V_{mp}=\sqrt\frac{2KT}{m}\)for oxygen gas at T=310K
Mass of oxygen ,m= \(mass=\frac{32g/mol}{6.022\times10^{23} \:(molecules/mol)}\)
Mass of oxygen =\(53.1 \times 10^{-24} \:(g/molecules)\)
Mass of oxygen =\(53.1 \times 10^{-24} \:(g/molecules)(\frac{1Kg}{10^3g} )\)
Mass of oxygen =\(53.1 \times 10^{-27} Kg\)
\(V_{mp}=\sqrt\frac{2(1.38\times10^{-23})(310K)}{53.1\times 10^{-27} Kg}\)
\(V_{mp}=401m/s\)
fraction of particles is f(\(V_{mp}\))=\(4\pi(\frac{m}{2\pi KT} )^{\frac{1}{2}} \times 7^2 \times (\frac{2KT}{m} )\times e^\frac{-m(7V_{mp})^2}{2KT}\)f(\(V_{mp}\))=\(\frac{196}{e^{49} \sqrt{\pi} V_{mp}}\)
f(\(V_{mp}\))= \(\frac{196}{e^{49} \sqrt{\pi}\times 401}\)
f(\(V_{mp}\))=\(2.46 \times 10^{-21}\)
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please help!!! will give 25 points!
the whole point of the assignment is that we're supposted to match up alien periodic table to ours, and i think i'm missing something.
9. Rhaatrap (R) and Doadeer (Do) are metals in the fourth period, but Rhaatrap has more electrons than Doadeer.
10. Magnificon (M), Goldy (G), and Sissis are all members of Group 15. Goldy has fewer total electrons than Magnificon.
11. Urrp (Up), Oz (Oz), and Nuutye (Nu) all gain 2 electrons when they react. Nuutye has the same properties as a gas found in Earth’s atmosphere. Oz has a lower atomic number than Urrp.
12. The element Anatom (An) has atoms with a total of 49 electrons. 13. Zapper (Z) and Pie (Pi) lose two electrons when the react. Zapper loses them from its third energy level while Pie loses them from its 5 th .
Answers
Answer:
I'm sorry but I can't do this one.
Explanation:
I'm not gonna lie, I think I'm missing something too.
Justify how the octet rule helps to predict which elements can bond with each other. Be sure to cite specific examples and non examples in
your response
Answers
preferAnswer:
The octet rule refers to the tendency of atoms to prefer to have eight electrons in the valence shell. When atoms have fewer than eight electrons, they tend to react and form more stable compounds. Atoms will react to get in the most stable state possible
Explanation:
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Why is it necessary to adjust the height of the graduated cylinder when measuring the volume of co2 (g) produced?.
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It is necessary to adjust the height of the graduated cylinder when measuring the volume of co2 (g) produced to maintain atmospheric pressure.
Pressure is defined as force/area. To illustrate the pressure from snow on a roof, divide the weight of the snow by the surface area of the roof. Gases are a typical pressure source in chemistry. A "vacuum" is used to describe the absence of pressure. Humans have long held the belief that vacuums are both improbably rare and unnatural since "nature abhors a vacuum." Actually, this is not the case.
The number of pressure units is ridiculous. It's common to use the torr or mmHg unit. This discussion is solely focused on the height of a mercury column. The atmosphere contains 760 torr, or mmHg. You could also look at mmH2O, which makes use of a comparable idea.
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a student had two dilute, colorless solutions, hcl(aq) and naoh(aq), which were at the same temperature. the student combined the solutions, and the reaction represented above occurred. which of the following results would be evidence that a chemical reaction took place? a the resulting solution is colorless. b the temperature of the reaction mixture increases. c the total volume of the mixture is approximately equal to the sum of the initial volumes. d the resulting solution conducts electricity
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An indication that a chemical reaction occurred would be an increase in the reaction mixture's temperature.
Explain about the Chemical reaction?A chemical reaction is a process in which reactants interact chemically and turn into products. For illustration When humans breathe in oxygen, it combines with glucose to create carbon dioxide, water, and energy.
Chemical reaction is the process by which one or more compounds, known as reactants, change into one or more new ones, known as products. Chemical components or compounds make up substances.
Living organisms, such as cells, animals, people, and insects, can evolve, reproduce, and adapt thanks to chemical processes.
Floro antimonic acid, often known as HSbF6, is the strongest super acid known to man. It is created by combining antimony pentafluoride (PFF) and hydrogen fluoride (HF) (SbF5). The strongest super acid known to man is produced by mixing equal amounts of the two acids in a variety of combinations.
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How are the number of protons and neutrons represented in a periodic table?
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Answer:
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of every atom of that element. The atomic number uniquely identifies a chemical element.
Explanation:
how would doubling the concentration of t-bucl affect the rate of the reaction? why?
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Answer:
Explanation: It will not
the molar solubility of c a ( o h ) 2 ca(oh)x2 was experimentally determined to be 0.019 m. based on this value, what is the k s p ksp of c a ( o h ) 2 ca(oh)x2 ?
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The K s p of Cu(OH)2 = 3.11 * 10^-5
What is K s p value ?
The equilibrium constant for a solid material dissolving in an aqueous solution is the solubility product constant, K s p. It stands for the degree of solute dissolution in solution. A substance's K s p value increases with how soluble it is.
Solubility of A x B y salt
K s p = \(X^x Y^y S^(x+y)\)
Solubility of Ca(OH)2 = 0.0198M
K s p = 1 * 2^2 * ( 0.0198) ^ 1+2 = 3.11 * 10^-5
K s p = 3.11 * 10^-5
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