Acid-Base Experiment Concepts Answer the following true-false questions regardin

Question

Acid-Base Experiment Concepts Answer the following true-false questions regarding the acid-base experiment: True The end point may vary depending on the indicator used for the titration. True | pH=pKa at 50% T because all of the weak acid has reacted at this point. TrueThe moles of potassium ion exchanged with hydronium ion in the column should be equal. TrueThe hydronium ion molarity for a solution of pH 6 is 50% smaller than a solution of pH 12. Submit Answer Incorrect. Tries 8/99 Previous Tries

Explanation / Answer

Q1.

Correct, endpoint is the point in which we assume the equivalence point has been achieved

this is given via indicator, the indicator changes color with pH

Q2

FALSE, not all acid has reacted

this is actually correct: 50% has reacted, 50% is left

Q3

Not likely, H3O+ depends on pH, K+ depends on salt alone

Q4

false, it is not related directly, w must apply antilog or 10^-X

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