A solution of acetic acid is prepared in water by adding 11.1 g of sodium acetate to a volumetric flask and bringing the volume to 1.0 L with water. The final pH is measured to be 5.25. What are the concentrations of acetate and acetic acid in solution? (Assume that the temperature of the solution is 25 degrees Celsius)

when nitric oxide reacts with oxygen GIVES Nitrogen dioxide.

NO(g)+ \(0_2\)=2N\(O_2\) is the balanced reaction

here, from the above reaction, we have found that

1 mole of NO and 2 mole of \(0_2\) gives 2 mole of N\(O_2\)

from the mole concentration, we can conclude that oxygen is limiting reactant.

A limiting reactant is an active ingredient in a reaction that is totally consumed by its conclusion. The limiting reactant determines how much product is produced in a chemical process.

In a chemical reaction, the reactants react in a stoichiometric sequence to produce the products. The limiting reactant is the one that is present in lower stoichiometric amounts. The amount of the product created depends on how much of the limiting reactant is used up in the reaction. Excess reactants are the additional reactants in the reaction besides the limiting reactants.

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Answer: At very low temperatures, gases expand less for a given pressure change than they do at high temperatures.

Explanation:

Answer:

above me is righttttttt

D. The option that is formed by the process of fusion in stars is elements.

When the new star reaches a certain size, a process called nuclear fusion ignites, generating the star's vast energy.

The fusion process forces hydrogen atoms together, transforming them into heavier elements such as;

Thus, the option that is formed by the process of fusion in stars is elements.

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In this question, we have the following reaction:

A. C + 2 Cl2 -> CCl4, this is the full reaction, the product is Carbon tetrachloride

B. According to the molar ratio between the product and the 2 reactants, we have 1 mol of CCl4 for 1 mol of C and 1 mol of CCl4 for 1 mol of Cl2, therefore if we have 3 moles of CCl4, we will need 3 times more moles of the reactants, the final reaction will be:

3 C + 6 Cl2 -> 3 CCl4

The absorbance of this solution at this wavelength would be 0.287.

We can use the relationship between percent transmittance (%T) and absorbance (A) :

% T = 10 ^ ( - A )

Rearranging this equation, we can solve for A:

A = - log (%T / 100 )

Substituting the given value, we get:

A = - log ( 51. 6 / 100) = - log (0. 516) = 0. 287

Therefore, the absorbance of this solution at 550 nm is 0.287 .

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Answer:

\(\huge \dag \sf{Specific \: Heat}\)

Specific Heat is the quantity of heat required to raise the temperature of one gram of a substance by one Celsius degree.Specific heat is a characteristic property that measures how much energy it takes to raise the temperature 1 gram of a material 1°C.

\(\huge\bold\red{Formula}\)

mass x specific heat x change of temperature

Or,

c = Q / (mΔT)

\(\Large\textsf{Hope \: It \: Helped}\)

\({\blue{Formula}}\)

The formula for specific heat is the amount of heat absorbed or released = mass x specific heat x change in temperature.

\({\green{explanation}}\)

Specific heat is the amount of heat required to raise one gram of any substance one degree Celsius or Kelvin.

Explanation:

MV1=MV2

5×100=1×V

V=500

The volume of 5 M NaOH needed is 20 mL

From the question given above, the following data were obtained:

Molarity of stock solution (M₁) = 5 M

Volume of diluted solution (V₂) = 100 mL

Molarity of diluted solution (M₂) = 1 M

The volume of the stock solution needed can be obtained as follow:

5 × V₁ = 1 × 100

5 × V₁ = 100

Divide both side by 5

V₁ = 100 / 5

Therefore, 20 mL of 5 M NaOH is needed.

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The substance is ethylene glycol.

The term density is the ratio of mass to volume. We have two substances here which are ethanol and ethylene glycol. We have the mass of the solution as shown in the image in question 7 in the attachment to the question.

Mass of the solution = 381 - 250 = 131 g

Volume of the solution = 4 fl oz

1mL= 0.0338 fl

x = 4 fl oz

x =4 fl oz*  1mL/0.0338 fl oz

x = 118.34 mL

Density = mass/volume =  131 g/118.34 mL = 1.11 g/mL

The substance is ethylene glycol.

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The equilibrium constant for the reaction given that the equilibrium concentration of [PH₃] = 0.250 M, [H₂] = 0.580 M, and [P₄] = 0.750 M is 7.3

From the question given above, the following data were obtained:

The equilibrium constant for the reaction can be obtained as shown below:

Equilibrium constant = [Product]ᵐ / [Reactant]ⁿ

Where

Equilibrium constant = [H₂]⁶[P₄] / [PH₃]⁴

Equilibrium constant = [(0.580)⁶ × 0.750] / (0.250)⁴

Equilibrium constant = 7.3

Thus, the equilibrium constant for the reaction is 7.3

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Electrons are transferred from atoms of sodium to atoms of phosphorous The sodium atom looses electron and the phosphorus atoms gains electrons.

The electron is a subatomic particle with an elementary electric charge of -1. Electrons are the first generation of the lepton particle family and are widely regarded as elementary particles due to the lack of known components or substructure.

This transfer causes the sodium atoms  to acquire positive charge and phosphorous to acquire negative charge .

Thus, the sodium and phosphorus atoms strongly attract with each other.

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Your question is incomplete, most probably, your question was

Complete the paragraph about the formation of sodium phosphide.

Electrons are transferred from atoms of

and the phosphorus atoms

to atoms of

C. This transfer makes the sodium atoms

As a result, the sodium and phosphorus atoms strongly

each other.

Answer:it dissolves and evaporates

Explanation:

The crystal lattice energy depends not only on the charge of the ions but also on the distance between the ions and the arrangement of the ions in the crystal structure.

Therefore, two ionic solids made of 1/-1 ions can have different crystal lattice energies if the ions have different sizes or if the arrangement of the ions in the crystal is different. A crystal lattice is a three-dimensional arrangement of atoms, ions, or molecules in a crystal that forms a regular repeating pattern. It is a fundamental concept in solid-state physics and chemistry, and understanding the crystal lattice structure of a material is essential for predicting its properties and behavior. The crystal lattice is described by its unit cell, which is the smallest repeating unit of the lattice that can be used to build the entire crystal structure. The crystal lattice energy is the amount of energy required to break the lattice and is influenced by the size and charge of the ions, as well as the arrangement of the ions in the crystal structure. The crystal lattice can also affect the physical properties of a material, such as its melting point, solubility, and conductivity.

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The non-metal elements in Group 7 – known as the halogens – get less reactive as you go down the group

Answer & Explanation:

The reactivity of elements in Group VII, also known as Group 17, decreases with increasing atomic radius. This is because halogens have high electronegativities and a proclivity to gain electrons in noble gas configurations. Myths are traditional stories or beliefs that explain cultural or societal beliefs, customs, or natural phenomena. They can be passed down through generations and can be based on true or fictitious events. Mythology, on the other hand, is the collection of myths associated with a specific culture or religion. Mythology can be amplified through retelling, incorporation into religious practices; association with significant events or figures, and adaptation into other media forms such as literature, film, or art.

Answer:

n =  2 mol

Explanation:

Given data:

Pressure = standard = 1 atm

Temperature = standard = 273.15 K

Volume = 44.8 L

Number of moles = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

1 atm × 44.8 L = n × 0.0821 atm.L/ mol.K  × 273.15 K

44.8 atm.L = n × 22.43 atm.L/ mol

n = 44.8 atm.L /   22.43 atm.L/ mol

n =  2 mol

Pls find my answer bellow

By using Avogadro's Law we have:

Where V is volume and n is moles, By substituting what have to find the unknown V2 gives:

11.0 L/ 7.70 moles = V2/ 2.97 moles

V2 = 11.0 L x 2.97 moles / 7.7 moles

V2 = 4.24 L. This is the volume of gas that would have escaped

New volume of the container is:

V= 11.0 L- 4.24 L

V= 6.76 L

Answer is 6.76 L

Answer:

like a circle

Answer:

it would look white and its a circle

Explanation:

pLEASE MARK BRAINLIEST

A solution is a combination of two or more substances in which the molecules are evenly distributed throughout. A colloid is a combination of two or more substances in which the molecules are not evenly distributed.

A solution is a kind of homogeneous mixture composed of two or more substances. The term aqueous solution is termed when one of the solvents is water. In such a mixture, solute and solvent are the two components in the solution.

The mixing process of a solution happens at a macroscopic scale via the interchange of particles between the solvent and solute.

A colloid is a substance that is composed of particles that are too small to be seen with a microscope, but are large enough so that they do not pass through a semipermeable membrane. An example of a colloid is milk.        

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Answer:

My answer is d. hope this'll help

Hypothesis is a proposed explanation for an observable phenomenon. The term comes from the Greek word for "to suppose." Variables, on the other hand, are anything that can be changed or measured. Variables can be independent, dependent, or control variables. Learning activities titled “Hypothesis”, “Variables and Hypothesis” and “Constructing a Hypothesis” share similarities and differences with a question that comes in response to an observation and a scientific research question.

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Answer: 1 & 3

Explanation:

Answer and Explanation:

The radiant energy come from electromagnetic radiation, so let's review the concept of electromagnetic radiation: electromagnetic radiation is a form of energy that is produced by oscillating electric and magnetic disturbance, or by the movement of electrically charged particles traveling through a vacuum or matter. Its spectrum contains different types of radiation: radio, microwave, infrared, visible, ultraviolet, X-ray, and gamma-ray.

Answer:

Dinitrogen pentoxide also known as Nitrogen pentoxide or nitric anhydride (these are all the same thing just different names people call them)

Answer:

\(\huge\boxed{\sf M = 0.06\ M}\)

Explanation:

No. of moles = n = 0.03 mol

Volume = v = 500 ml = 0.5 L

Molarity = M = ?

M = n / v

Put the given data in the above formula.

M = 0.03 / 0.5

\(\rule[225]{225}{2}\)

We can produce more products by;

A. Increasing the concentration of H₂ gas in the reaction vessel

B. Decreasing the temperature in the reaction vessel

C. Removing the H₂O from the reaction vessel as it forms

Water is created through an exothermic process. Heat energy is released when hydrogen gas (H2) and oxygen gas (O2) mix to make water (H2O). An exothermic reaction is characterized by this energy release.

The reaction's overall energy change is negative, which shows that energy is released. The reaction is exothermic because the extra energy is released as heat into the environment.

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Missing parts;

Water can be made using the reversible reaction shown. Which change would

keep this reaction from shifting to form more of the product?

2H₂+022H₂O + energy

A. Increasing the concentration of H₂ gas in the reaction vessel

B. Decreasing the temperature in the reaction vessel

C. Removing the H₂O from the reaction vessel as it forms

D. Increasing the temperature in the reaction vessel

The periodicity and patterns displayed by the earlier versions of the periodic table played a critical role in driving the discovery of new elements, and the periodic table remains an essential tool for organizing and understanding the properties of the known elements today.

The chemical elements are arranged in rows and columns in the periodic table, sometimes referred to as the periodic table of the elements.

The Russian chemist Dmitri Mendeleev's periodic table, which he developed in 1869 and which established the periodic law as the dependence of chemical properties on atomic mass, was the first to be widely acknowledged.

Mendeleev's periodic table had gaps because not all elements were known at the time; however, he was able to forecast some of the missing elements' properties using the periodic law.

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Answer:

a solute is that which dissolves in a solvent

Explanation:

salt in hot water

sugar when mixed in warm tea

Answer:

A solute is a small/minor component in a solution.

Explanation:

:)

Answer:

eight electrons

Explanation:

Most of the elements important in biology need eight electrons in their outermost shell in order to be stable, and this rule of thumb is known as the octet rule. Some atoms can be stable with an octet even though their balance she'll is the 3n shell, which can hold up to 18 electrons.