I need #3. PRE-LAB or POST-LAB QUIZ PRE-LAB or POST-LAB QUIZ Multiple choice que

Question

I need #3.

PRE-LAB or POST-LAB QUIZ PRE-LAB or POST-LAB QUIZ Multiple choice questions. Circle your answers Name Instructor/Section 1. The process of carrying out an analysis where a measured volume of a chemical hav- ing an UNKNOWN concentration is reacted with a measured volume of a chemical having a KNOWN concentration is called a. the neutralization point. b. the equivalence point. c. the end point. d. a titration. 2. In volumetric analysis, the point at which the indicator changes color is called a. the neutralization point. b. the equivalence point. c. the end point. d. a titration. 3. In this experiment, one mole of base neutralizes a. one-half mole of acid. b one mole of acid c. two moles of acid. ase of known concentration is added to the vinegar until the solution in the flask turns fromm a. pink to colorless. b. colorless to the first tinge of pink, which will quickly go away c. colorless to the first tinge of pink that does not go away when swirled. d. colorless to a bright shade of pink What is the name and chemical formula of the acid present in vinegar? Name: Formula:

Explanation / Answer

No acid is stated

if the base you are using is NaOH, or KaOH ( very typical for titration )

then,

you need

1 mol of base for:

HCl, HBr, HI acids (monoprotics)

2 mol of base for

H2SO4 (diprotics)

If you are using (Ba(OH)2 or Ca(OH)2)

then,

you need

1/ 2mol of base for:

HCl, HBr, HI acid (monoprotics)

1 mol of base for:

H2SO4 (diprotics)

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