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Quantitative Volumetric Analysis Quiz

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Questions and Answers

What is the unit of molar concentration and how is it symbolized?

mol/g

g/mol

mol/L (correct)

L/mol

How is normality defined in terms of concentration?

Moles per liter

Moles per gram

Gram equivalent weight per liter (correct)

Grams per mole

What is the equivalent weight for HCl, considering the number of replaceable hydrogen atoms?

Molecular weight divided by 1 (correct)

Molecular weight divided by 2

Molecular weight multiplied by 2

Molecular weight

For NaOH, what is the equivalent weight based on the number of replaceable hydroxyl ions?

Molecular weight divided by 1 Signup and view all the answers

How is the equivalent weight calculated for salts?

(Molecular weight) / number of cations x valency Signup and view all the answers

What does an empirical solution determine?

The concentration that reacts with a specific substance Signup and view all the answers

What is the main characteristic of a primary standard chemical?

High Stability Signup and view all the answers

Which type of solution is used for the determination of only a single substance?

Empirical solution Signup and view all the answers

Why should primary standard chemicals have a high equivalent weight?

To minimize weighing errors Signup and view all the answers

What is the purpose of preparing standard solutions using the indirect method for secondary standard chemicals?

To enhance accuracy during standardization Signup and view all the answers

Which type of standard should the concentration of a secondary standard chemical be compared to?

Primary standard Signup and view all the answers

What is the characteristic feature of a secondary standard chemical?

Reactive nature Signup and view all the answers

What is the purpose of a standard solution in volumetric analysis?

To determine the exact concentration of the sample Signup and view all the answers

What is an indicator in volumetric titrations used for?

To determine the end point of the reaction Signup and view all the answers

Why is it important for the reaction in volumetric analysis to be stoichiometric?

To guarantee a quantitative result Signup and view all the answers

What characteristic must an ideal titrimetric reaction possess?

Simple and expressible by a chemical equation Signup and view all the answers

How are end points detected in volumetric titrations?

By observing a change in turbidity Signup and view all the answers

What role does a standard titrant play in volumetric analysis?

Determine the unknown concentration of the sample Signup and view all the answers