Pharmaceutical Analysis 1: Acid-Base Titration and Trimeteric Analysis

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Questions and Answers

What is the term for the point in titration where the amount of standard is equal to the amount of analyte?

Equivalence point (correct)
Standard point
Titration point
Endpoint

Why are secondary standards used in titration?

Because they are more pure than primary standards
Because few compounds can meet the criteria for primary standards (correct)
Because they are easier to prepare than primary standards
Because they are less expensive than primary standards

What is the primary standard in titration?

A purified compound that is used as a reference (correct)
A highly corrosive substance
A reagent of unknown concentration
A substance that is highly reactive

What is the ideal property of a standard solution for titrometric analysis?

It is stable and reacts rapidly with the analyte (C) Signup and view all the answers

What is the main purpose of back titration?

To add an excess of the standard solution and then determine the excess amount (B) Signup and view all the answers

What is calculated by dividing the mass of a substance by its molar mass?

Amount of moles (C) Signup and view all the answers

What is the most important characteristic of a substance to be used as a primary standard?

High purity (A) Signup and view all the answers

What is the difference between molar concentration and normal concentration?

Molar concentration is the number of moles of reagent, while normal concentration is the number of equivalents of reagent (D) Signup and view all the answers

What is the difference between volumetric and coulometric titration?

Volumetric titration measures the volume of the analyte, while coulometric titration measures the quantity of charge (B) Signup and view all the answers