CHEMISTRY HIGH SCHOOL

If the formic acid were replaced with a strong acid such as HCI at the same concentration (2.0 M). how would that change the volume needed to reach the equivalence point? (A) The change would reduce the amount, as the acid now fully dissociates. (B) The change would reduce the amount, because the base will be more strongly attracted to the acid. (C) The change would increase the amount, because the reaction will now go to completion instead of equilibrium. (D) Changing the strength of the acid will not change the volume needed to reach equivalence.

Answers

Answer 1
Answer:

answer for my di0ck s!ut

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At standard pressure, how do the boiling point and the freezing point of NaCl(aq) compare to the boiling point and the freezing point of H2O(image)?

Answers

The boiling point of Sodium chloride(aq) is higher and the freezing point of Sodium chloride(aq) is lower.

What is the boiling point?

The boiling point is the temperature at which the pressure exerted by the surroundings upon a liquid is equal to the pressure exerted by the vapour of the liquid.

Usually, in this context, you would be referring to the boiling and freezing point of a Sodium chloride solution compared to pure H2O.

The boiling point of pure water is 100 degrees Celcius (212 Fahrenheit), and the freezing/melting point is below 0 degrees Celcius  (32 Fahrenheit). For a solution, the boiling point is raised and the melting point is lowered.

This means that water will stay liquid for an increased range of temperature. Depending on the amount of Sodium chloride solute in the water, the boiling and melting points may change a few degrees.

Learn more about the boiling point here:

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Just had this multiple choice on my vacation packet the answer is the boiling point of NaCl(aq) is higher and the freezing point of NaCl(aq) is lower

Which element, represented by X, reacts with fluorine to produce the compound XF2?(1) aluminum (3) magnesium
(2) argon (4) sodium

Answers

The answer is (3) magnesium. Aluminum usually has valence of +3 and Sodium usually has valence of +1. Argon is usually not react with others. Because it is already stable with 8 electrons at the outer shell.

How could you safely determine if a base is stronger than an acid?

Answers

Combine the two solutions. If the resulting salt is basic, you know the base was stronger. If you end up with an acidic salt, the acid was stronger.

Answer:

B) Use a conductivity apparatus

Explanation:

I got it right on Plato. Strong acids and strong bases will conduct more than weak acids and weak bases, so you can tell if one is stronger than the other by seeing which one conducts more.

definition of a solvent , solution , solute !!!!!!!!!! ;)

Answers

A solution is a mixture (solvent + solute) of 2 or more elements, for example chocolate milk.

A solvent is the base of the solution which dissovles a solute, for example milk.

A solute is what is dossolved by the solvent, for example chocolate powder.
Solvent - the liquid in which a solute is dissolved to form a solution

Solution - a liquid mixture in which the minor component (the solute) is uniformly distributed within the major component (the solvent)

Solute - the dissolved substance in a solution

A sample of gas confined in a cylinder with a movable piston is kept at constant pressure. The volume of the gas doubles when the temperature of the gas is changed from(1) 400. K to 200. K (3) 400.°C to 200.°C
(2) 200. K to 400. K (4) 200.°C to 400.°C

Answers

When the pressure is constant, the temperature and volume of the gas has ratio relationship: V1/T1= V2/T2. And the temperature using unit of K. Then we can get the answer is (2) 200 K to 400 K.

How does litmus paper identify a base?A base turns red litmus blue.
A base turns blue litmus red.
A base turns orange litmus red.
A base turns yellow litmus blue.

Answers

Answer;

A base turns red litmus blue.

Explanation;

Litmus paper is an acid/base indicator that changes color to identify bases and acids.

Red litmus paper is used in chemical laboratories to identify bases. A base is a substance that accepts hydrogen ions (H+) in water. The color of a red litmus paper remains the same under acidic conditions and turns blue under basic conditions.

Blue litmus paper turns red under acidic conditions and remains the same under basic conditions. An acid is a substance that releases hydrogen ions in an aqueous solution. Blue litmus paper is prepared by treating plain paper with lichen-blue litmus. Blue litmus paper is typically used to test acids, such as sulphuric acid, hydrochloric acid, nitric acid, ethanoic acid, citric acid, and vinegar.

Answer:

Your answer is A

Explanation:
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