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What would happen if a small amount of base were added to a buffered solution?A.The pH would remain about the same.B.The pH would decrease.C.The pH would remain neutral.D.The pH would increase.

Question

What would happen if a small amount of base were added to a buffered solution?A.The pH would remain about the same.B.The pH would decrease.C.The pH would remain neutral.D.The pH would increase.

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Solution

A. The pH would remain about the same.

This is because a buffered solution is designed to resist changes in pH when small amounts of an acid or a base are added. The buffer does this by "absorbing" the extra H+ or OH- ions that are introduced into the solution, thus preventing the pH from changing significantly.

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How will diluting a buffer solution affect its pH?Question 4AnswerThe pH will remain the same as the concentrations of both weak acid and weak base components remain unchangedThe pH will remain the same as the amounts of both weak acid and weak base components remain unchangedThe pH will decrease as the concentration of the weak acid component will increaseThe pH will increase as the concentration of the weak base component will increase

A student tests the pH of a base solution and then adds 10 ml of acid to the base solution. After this, the student retests the pH of the solution. What will most likely to the pH?A The pH of the solution will increase and become more acidic. B The pH of the solution will decrease and become more acidic. C The pH of the solution will increase and become more basic. D The pH of he solution will decrease and become more basic.

A buffer is a solution that ______.Multiple choice question.resists changes in pH when limited amounts of acid or base are addedchanges color when limited amounts of acid or base are added.always has a pH of 7, even when limited amounts of acid or base are addedquickly changes pH when limited amounts of acid or base are added

Consider a buffer solution prepared by dissolving 0.15 mol of benzoic acid (C6H5COOH) and 0.30 mol of sodium benzoate (NaC6H5COO) in 1.00 L of solution. (Ka of Benzoic acid  = 6.3 x 10-5). If 0.05 mol of HCl is added to this buffer solution the pH of the solution will drop slightly. The pH does not drastically decrease because the HCl reacts with the ____ present in the buffer solution.Question 8

If the pH of a solution is increased what happens to the acidic solute in the solution?

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