How much volume would be occupied by the amount of ethyl alcohol that contains 48.0 moles of hydrogen (h) atoms? the density of ethyl alcohol is 0.789 g/ml.
Answers
Therefore, the volume occupied by the amount of ethyl alcohol containing 48.0 moles of hydrogen atoms is approximately 61.41 mL.
To calculate the volume occupied by the given amount of ethyl alcohol, we need to use the density of ethyl alcohol and convert moles of hydrogen atoms to grams.
First, we need to find the molar mass of ethyl alcohol (C2H5OH).
The molar mass of carbon (C) is 12.01 g/mol, hydrogen (H) is 1.01 g/mol, and oxygen (O) is 16.00 g/mol.
Adding these up gives a molar mass of 46.08 g/mol for ethyl alcohol.
Next, we can calculate the mass of 48.0 moles of hydrogen atoms using the molar mass of hydrogen (1.01 g/mol).
The mass is given by:
mass = moles × molar mass
mass = 48.0 mol × 1.01 g/mol
mass = 48.48 g.
Now, we can use the density of ethyl alcohol (0.789 g/mL) to find the volume.
Density is defined as mass divided by volume, so we can rearrange the equation to solve for volume:
volume = mass/density
volume = 48.48 g / 0.789 g/mL
volume = 61.41 mL.
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Related Questions
An Olympic swimming pool is 50 meters long. You swim from one end to the other four times.How many meters do you swim?
Answers
Answer:
200 meters
Explanation:
if u swim for each end 4 times, and its 50 meters long, 50 x 4 = 200 meters
The pH of a 0. 20 M solution of C2H5COONa (Ka C2H5COOH = 1. 34 x 10¯5) is
Answers
Answer: The pH is 9.09.
Explanation:
This question involves the hydrolysis of a salt into a weak acid and strong base.
Fastest SolutionThe fastest solution is found by using the equation:
\(\text{pH} = \frac12 \ \text{pK}_w + \frac12 \ \text{pK}_a + \frac12 \log C\)
where C represents the concentration of the solution.
We have:
Ka = 1.34 x 10^-5, so pKa = -log(1.34 x 10^-5) = 4.873
Kw = 1.0 x 10^-14, so pKw = -log(1.0 x 10^-14) = 14.00
C = 0.20, so log(C) = log(0.20) = -0.70
Then,
\(\text{pH} = \frac12 (4.873) + \frac12 (14.00) + \frac12 (-0.70) = 9.09\)
AP Chemistry Level SolutionA solution that uses only fundamental chemistry techniques can be found by considering the chemical reactions involved.
The salt \(\text{C}_2\text{H}_5\text{COONa}\) will completely dissolve in solution into its ions:
\(\text{C}_2\text{H}_5\text{COONa} \text{ (aq)} \rightarrow \text{C}_2\text{H}_5\text{COO}^- \text{ (aq)} + \text{Na}^+ \text{ (aq)}\)
This shows that \([\text{C}_2\text{H}_5\text{COO}^-] = [\text{C}_2\text{H}_5\text{COONa}] = 0.20 \text{ M}\).
When water is added, an acid-base reaction occurs:
\(\text{C}_2\text{H}_5\text{COO}^- \text{ (aq)} + \text{H}_2\text{O} \text{ (l)} \rightleftharpoons \text{C}_2\text{H}_5\text{COOH} \text{ (aq)} + \text{OH}^- \text{ (aq)}\)
Using a RICE (Reaction-Initial-Change-Equilibrium) table, we can write the following analysis:
0.20 N/A 0 0 (initial conc.)
- x N/A + x + x (change)
-------------------------------------------------------------------------
(0.20 - x) N/A x x (equilibrium)
Then, we can write the forward base-reaction constant:
\(\text{K}_b = \frac{[\text{C}_2\text{H}_5\text{COOH}][\text{OH}^-]}{[\text{C}_2\text{H}_5\text{COO}^-]} = \frac{(x)(x)}{0.20-x} = \frac{x^2}{0.20-x}\)
We have \(\text{K}_a = 1.34 \times 10^{-5}\) and we also know that \(\text{K}_w = \text{K}_a \times \text{K}_b\). It follows that:
\(\text{K}_b = \frac{\text{K}_w}{\text{K}_a} = \frac{1.0 \times 10^{-14}}{1.34 \times 10^{-5}} = 7.46 \times 10^{-10}\)
Since Kb is very small, we may assume that \((0.20 - x) \approx 0.20\). Then,
\(7.46 \times 10^{-10} = \frac{x^2}{0.20} \quad \rightarrow \quad x \approx \sqrt{0.20(7.46 \times 10^{-10})} = 1.22 \times 10^{-5}\)
Then,
\([\text{OH}^-] = x = 1.22 \times 10^{-5}\)
\(\text{pOH} = -\log(1.22 \times 10^{-5}) = 4.91\)
Finally,
\(\text{pH} = \text{pK}_w - \text{pH} = 14.00 - 4.91 = 9.09\)
which of the following is an indicator of a chemical reaction?
A. two different compounds mixing and remaining seperate.
B. changing states of matter (solid to liquid).
C. decreasing in size.
D. increasing in tempurature
Answers
Answer:
option . D
Increase in temperature
is an indicator of a chemical reaction
hope it helps
Answer:
answer is D
Explanation:
some signs of a chemical change are a change in colour and the formation of bubbles.
the five conditions of chemical change: colour change, formation of precipitate, formation of a gas ,odor change, temperature change.
I think it will use for you
6.58 grams of sulfur trioxide and 16.4 grams of water react to form H2SO4. identify the limiting reagent and the excess. how many grams of the excess is left over .
what mass of sulfuric acid is produced?
Answers
1. The limiting reagent is sulfur trioxide, SO₃ and the excess reagent is water, H₂O
2. The mass of the excess reagent leftover is 14.92 g
3. The mass of sulfuric acid, H₂SO₄ is produced is 8.06 g
1. How do i determine the limiting and the excess reagent?The limiting and excess reagent can be obtained as follow:
SO₃ + H₂O -> H₂SO₄
Molar mass of SO₃ = 80 g/molMass of SO₃ from the balanced equation = 1 × 80 = 80 g Molar mass of H₂O = 18 g/molMass of H₂O from the balanced equation = 1 × 18 = 18 gFrom the balanced equation above,
80 g of SO₃ reacted with 18 g of H₂O
Therefore,
6.58 g of SO₃ will react with = (6.58 × 18) / 80 = 1.48 g of H₂O
From the above calculation, we can see that only 1.48 g of H₂O out of 16.4 g is needed to react completely with 6.58 g SO₃.
Thus, the limiting reagent is SO₃ and the excess reagent is H₂O
2. How do i determine the mass of the excess reagent leftover?The mass of the excess reagent leftover can be obtained as follow:
Mass of excess reagent, H₂O given = 16.4 gMass of excess reagent, H₂O that reacted = 1.48 gMass of excess reagent, H₂O leftover =?Mass of excess reagent, H₂O leftover = Mass given - mass reacted
Mass of excess reagent, H₂O leftover = 16.4 - 1.48
Mass of excess reagent, H₂O leftover = 14.92 g
3. How do i determine the mass of H₂SO₄ produced?The mass of H₂SO₄ produced can be obtained as illustrated below:
SO₃ + H₂O -> H₂SO₄
Molar mass of SO₃ = 80 g/molMass of SO₃ from the balanced equation = 1 × 80 = 80 g Molar mass of H₂SO₄ = 98 g/molMass of H₂SO₄ from the balanced equation = 1 × 98 = 98 gFrom the balanced equation above,
80 g of SO₃ reacted to produce 98 g of H₂SO₄
Therefore,
6.58 g of SO₃ will react to produce = (6.58 × 98) / 80 = 8.06 g of H₂SO₄
Thus, the mass of H₂SO₄ produced is 8.06 g
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6. The diagram below shows a simplified floor plan for a small house. As the day goes
on and the Sun begins to set the rooms on the west side of the house grow warmer
than the rooms on the east side, as shown by the temperatures in each room.
24°C
Room 2
27C
Room 1
Room 3
27°C
22°C
The doors between the rooms are open. Which of the following most likely
describes the direction of heat flow through the house and the effect of that heat
flow on temperature?
a. From Room 3 to Room 1 and Room 2 until all the rooms are about 25°C
b. From Room 2 to Room 2 to Room 3 until all the rooms are about 27°C
c. From Room 1 to Rooms 2 and 3 until all rooms are about 27.C
d. From Room 1 to Rooms 2 and 3 until all rooms are about 25°C
Answers
Answer ;
Your answer is C
Explanation:
10) How much 0.075 M NaCl solution can be made by diluting 450 mL of 9.0 M NaCl?
Answers
Answer:
54L
Explanation:
cold tcs food should be stored at an internal temperature of
Answers
Do not accept the food or throw the products away if the food temperatures fall outside of acceptable ranges or if TCS food exhibits signs of previous temperature abuse. Keep cold food at or below 41°F.
Do not accept the food or throw the products away if the food temperatures fall outside of acceptable ranges or if TCS food exhibits signs of previous temperature abuse. Keep cold food at or below 41°F. At supermarkets, eateries, and other establishments that sell ready-to-eat meals, customers are always demanding TCS food items. At the point of sale, people are pickier and look for foods from vendors they believe will provide a high-quality and safe product. Managers and employees need to be aware of all the supply chain locations where TCS foods are at risk for time and temperature excursions just for this reason.
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what are the three major groups of amino acids as categorized by the properties of their r groups? how do the chemical properties of each group affect protein shape?
Answers
The three major groups of amino acids, as categorized by the properties of their R groups, are:
Hydrophobic amino acidsHydrophilic amino acidsAromatic amino acidsWhat are the three major groups of amino acidsHydrophobic amino acids: These amino acids have nonpolar R groups, which are uncharged and do not interact with water molecules.
Hydrophilic amino acids: These amino acids have polar R groups that interact with water molecules, making them water-soluble.
Aromatic amino acids: This group includes amino acids with R groups that contain an aromatic ring, such as phenylalanine, tyrosine, and tryptophan.
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how that a temperature rise of 4k would raise the conductivity (i.e. the number of electrons in the conduction band) by 30%.
Answers
With the rise in temperature,the conductivity also increases.
With rising temperatures, semiconductors' electrical conductivity rises. The conductivity rises as a result of free mobility between the two bands created when electrons from the valence band are able to jump to the conduction band when the temperature rises.
Electrical Conductivity (EC), which is often expressed in Siemens (S) per distance, gauges a material's capacity to transfer an electrical current over a specific distance (usually m-meter). A conductivity meter is used to determine the conductance and read the electrical charge.
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State three pieces of evidence from the diagram which indicate that the plant is pollinated by wind. ( 3 marks)
Answers
Your image is saying "Can't load image on this device."
I need some help with this I would really appreciate if you could help out. Thank You
Answers
The type of chemical reaction occuring in the table above is as follows:
DecompositionCombination CombustionSingle replacementDouble displacementWhat is a chemical reaction?A chemical reaction is a process involving the breaking or making of interatomic bonds, in which one or more substances are changed into others.
There are several types of chemical reactions as illustrated in the equation given in the above table. They are as follows:
Decomposition reaction; This involves the breaking down of a large substance into its subsequent parts. Combination reaction: This involves the joining of two or more chemical elements to become one compound. Combustion reaction: It is a process wherein a fuel is combined with oxygen, usually at high temperature, releasing heat.Displacement reaction: In this reaction, one or more element is replaced in a compound by another in a chemical reaction.Learn more about chemical reaction at: https://brainly.com/question/22817140
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Question 2 (Multiple Choice Worth 2 points)
(01.03 LC)
2
A student is trying to calculate the density of a can. He already knows the mass, but he needs to determine the volume as well. Which of the following formulas can be used to calculate
the volume of the can?
3
O V =
3
1
OVE Tran
3
OV=53
Ov=mrah
Answers
Answer:
\(\pi\) r² x h
Explanation:
A can is cylindrical in nature. Using the formula of the volume of the can, we can find this unknown volume.
The volume of cylinder is given as:
Volume of a cylinder = Area x height
Volume of a cylinder = \(\pi\) r² x h
Therefore density of the can;
Density = \(\frac{mass}{volume}\)
I will give you Brainly if you awsers right pl if your gonna awser for pints just put I don’t know
Answers
Mono- one
Di- two
Tri- three
Tetra- four
Penta- five
Hexa-six
Hepta- seven
Octa- eight
Nona- nine
Deca- ten
I believe the crrect answer is B) two
IamSugarBee
what is the de Broglie wavelength of an electron traveling at 1.48 x 10^5 m/s?
Answers
The formula of De Broglie is the following:
\(\lambda=\frac{h}{mv}\begin{cases}\lambda=wavelength\text{ (m)} \\ h=Planck\text{ constant =6.626}\cdot10^{-34}Js \\ m=mas\text{s (kg)} \\ \text{v=}velocity\text{ (m/s)}\end{cases},\)Remember that the mass of an electron is 9.11 x 10 ^(-31) kg, so replacing in the formula, we're going to obtain:
\(\begin{gathered} \lambda=\frac{6.626\cdot10^{-34}J\cdot s}{9.11\cdot10^{-31}\operatorname{kg}\cdot1.48\cdot10^5\frac{m}{s}}, \\ \lambda=4.91\cdot10^{-9}\text{ m} \end{gathered}\)The answer is that the wavelength of an electron traveling at 1.48 x 10^(5) m/s is 4.91 x 10^(-9) m.
Which is a change or signal in the environment that can make an organism
react? *
stimulus
O reaction
impulse
O
response
Answers
Answer:
I'm pretty sure its stimulus
what is the major product of the following reaction h2so4
Answers
The major product of a reaction involving H2SO4 depends on the specific reactants and conditions. It can act as a strong acid and a dehydrating agent, leading to various possible products.
When H2SO4 is involved in a reaction, it can have various effects depending on the reactants and conditions. It can act as a strong acid, donating a proton (H+) to another compound. It can also act as a dehydrating agent, removing water molecules from other compounds.
The major product of a reaction involving H2SO4 will depend on the specific reactants and conditions. In some cases, H2SO4 can catalyze the rearrangement of functional groups, leading to the formation of different products. In other cases, it can promote the formation of new bonds or facilitate the elimination of water molecules.
To determine the major product of a specific reaction involving H2SO4, it is necessary to consider the reactants, their functional groups, and the reaction conditions. Experimental data and knowledge of reaction mechanisms can also provide insights into the expected products.
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Depending on the specific reactants and circumstances, H2SO4 reactions can produce a variety of main products.
Thus, It can function both as a potent acid and a dehydrating agent, producing a variety of potential goods.
Depending on the reactants and circumstances, H2SO4 can have a variety of consequences in a reaction. It can function as a potent acid, giving another chemical a proton (H+). It has the ability to dehydrate materials by eliminating water molecules from other substances.
The main byproduct of an H2SO4 reaction will vary depending on the exact reactants and circumstances. H2SO4 can occasionally stimulate the reorganization of functional groups, resulting in the production of various compounds.
Thus, Depending on the specific reactants and circumstances, H2SO4 reactions can produce a variety of main products.
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The major product of the following reaction is :
Fuming sulfuric acid (H2SO4 + SO3) is added to benzene.
What is the frequency of a red laser that has a wavelength of 676 mn
Answers
The frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.
Frequency of wavesThe frequency and wavelength of a wave are related by the following equation:
λf = c
Where λ is the wavelength of the wave in meters, f is the frequency in Hertz, and c is the speed of light in a vacuum.
in this case, λ = 676 nm = 6.76 x \(10^{-7\) m
c = 299,792,458 m/s
Making f the subject of the formula:
f = c/λ
= 299,792,458/6.76 x \(10^{-7\)
= 4.43 x \(10^{14\) hertz
In other words, the frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.
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Lithium is the least dense metal know with a density of 0.53 g/cm³. What is the volume occupied by 1.20x10³ grams of lithium
Answers
Answer:
2264.15 cm³Explanation:
The formula for finding the volume of an object given it's mass and density is given by
\(volume = \frac{mass}{density} \\ \)
From the question
mass = 1.2 × 10³ grams
density = 0.53 g/cm³
We have
\(volume = \frac{1.2 \times {10}^{3} }{0.53} = 2264.1509\\ \)
We have the final answer as
2264.15 cm³
Hope this helps you
What information does the rate constant give from the rate law?
OA. It tells how much the rate of the reaction is affected by volume.
B. It tells how much the rate of the reaction is affected by
temperature.
C. It tells how much the reaction rate is affected by concentrations.
D. It tells how much the reaction rate is affected by activation energy.
Answers
When the rate law is applied, the rate constant is It indicates how much activation energy influences reaction rate.
Explain about the rate law?The term "rate law," which is sometimes used to refer to the term rate equation, is a chemical equation that is frequently used to connect the initial (forward) chemical reaction rate to the concentrations or pressures of the chemical reactants and constant parameters.
A rate law demonstrates how the concentration of the reactant affects the rate of a chemical reaction. The rate law often has the form rate = k[A]n for a reaction such an A product, where k is the proportionality constant referred to as the rate constant and n is the order of the reaction in relation to A.
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What is the freezing point in °C) of a 0.743 m
aqueous solution of KCI?
Enter your rounded answer with
3 decimal places.
K; for water = 1.86 °C/m
Answers
Answer:
2.764 °C
Explanation:
ΔT = 2 x 1.86 C/m x 0.743m = 2.764C That means the freezing point of the solution is 2.764C less than the pure solvent (water)
Why do elements form ions?
Answers
Ions are formed when atoms lose or gai electron in order to fulfill the octet rule
What pattern can you determine about the location of the volcanoes and the earthquake zones? Also explain why the earthquake zones are long lines on the globe. Write 3 to 5 sentences.
Answers
Pattern: Volcanoes and earthquake zones are often found in close proximity to each other, with earthquake zones appearing as long lines on the globe.
The pattern can be attributed to the tectonic plate boundaries. Volcanoes are typically located along plate boundaries where there is subduction or collision of tectonic plates. These areas experience intense geological activity, leading to volcanic eruptions. Earthquake zones, represented by long lines on the globe, coincide with plate boundaries as well. The lines correspond to the locations where plates interact, resulting in significant stress and release of energy, leading to seismic activity. The long lines represent the interconnectedness of multiple earthquake-prone areas along the plate boundaries, forming seismic belts or zones. Therefore, the close proximity of volcanoes and earthquake zones can be explained by their shared association with tectonic plate boundaries and the geologically active regions that result from plate interactions.
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when a protein is heated, which of the following will most likely be disrupted?
Answers
Answer:
Heating a protein will not change its primary structure, but may change its secondary, tertiary or quaternary structure.
Explanation:
hope it helps
which of the following will increase the rate of a chemical reaction? increase the temperature at which the reaction occurs. allow the reaction to proceed for a longer time. decrease the concentrations of the reactants. decrease the amount of time in which the reaction is allowed to occur. decrease the temperature at which the reaction occurs.
Answers
Option C is correct. reduce reactant concentrations. shorten the time the reaction is allowed to proceed.
The reaction rate normally increases as the temperature rises. With rising temperature, the average kinetic energy of the reactant molecules rises. The minimum energy needed for an effective collision will therefore be present in a higher percentage of molecules. With rising temperatures, molecules' kinetic energy rises. The possibility of a reaction rises as molecules move more quickly and collide more frequently. This speeds up the reaction. The average kinetic energy of the individual particles of the system increases with increasing temperature. Particles move faster and collide more often per unit time as the average kinetic energy increases, and they have more energy when they collide. Both of these factors speed up the reaction.
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the belt of nuclear stability ends with the element ________. bismuth lead radon polonium astatine
Answers
The belt of nuclear stability ends with the element polonium, which is a radioactive, rare, and highly toxic metal.
Polonium has a very short half-life and decays quickly, making it challenging to study and handle. Its unstable nature and radioactivity make it a dangerous substance, and it can be harmful if ingested, inhaled, or absorbed through the skin. Polonium has several isotopes, and its most stable one has a half-life of 138.4 days.
Lead, with an atomic number of 82, is also a stable element, but it comes before bismuth in the periodic table.
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how can u launch make the model spacecraft move without touching it
Answers
Answer:
How can the launcher make the model spacecraft move without even touching it? ...
Magnetic forces can attract or repel objects at a distance. ...
They explore attracting and repelling forces with magnets and with the simulation. ...
Magnetic forces can convert potential energy stored in the magnetic field to kinetic energy.
Explanation:
The launcher can launch the model spacecraft by exerting a magnetic force.
Magnetic force is a force just like gravity that can act across a distance without touching the object that is attracted by it. It should be noted that magnetic attraction is a pulling force.
Therefore, since the launcher wants to make the model spacecraft move without touching it, a magnetic force should be exerted on it. The magnetic force can act as the distance that's required for the objects to move.
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Why was the electron the first subatomic particle discovered?
Answers
Answer: Hermann von Hemholtz believed that since electricity cast a shadow, arcs of electricity must be made of tiny, tiny, TINY particles: electrical atoms; or electrons.
Explanation: a scientist by the name of J.J. Thomson conducted an experiment to test the velocity of electricity, predicting it to be as fast as light. but it was actually much slower than light, which could only mean that it had mass; which means the electron is a form of matter.
"How does changing velocity affect the total Kinetic Energy (KE) of an Object?"
Hurryyy please helpp
Answers
An airplane travels with a constant velocity of 210 m/s and in the upper atmosphere where the plane is traveling there is a wind that is blowing at a constant velocity of 60 m/s to the east. Determine the resultant velocity for the plane when it is traveling
Answers
Answer:
hello your question is incomplete the options are missing
Determine the resultant velocity for the plane when it is travelling
i) To the east
ii) To the west
answer :i) 270 i
ii) -150 i
Explanation:
velocity of Airplane = 210 m/s
wind velocity = 60 m/s to the east
The resultant velocity for the plane when it is travelling
let the velocity of the wind = V2
velocity of the plane = v1
i) The resultant velocity for the plane when travelling to the east
Vr = V2 i + V1 i
Vr= 60i + 210i = 270i
ii) resultant velocity when the plane is travelling to the west
Vr = - V1 i + V2i
= -210i + 60 i = -150 i
any object that travels around another object in space is a (n) -
Answers
Answer:
The answer is Satellite
Explanation:
satellite! Or orbit basically