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?

<p>Molecular weight divided by 1 (C)</p> Signup and view all the answers

How is the equivalent weight calculated for salts?

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

What does an empirical solution determine?

<p>The concentration that reacts with a specific substance (B)</p> Signup and view all the answers

What is the main characteristic of a primary standard chemical?

<p>High Stability (B)</p> Signup and view all the answers

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

<p>Empirical solution (C)</p> Signup and view all the answers

Why should primary standard chemicals have a high equivalent weight?

<p>To minimize weighing errors (D)</p> Signup and view all the answers

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

<p>To enhance accuracy during standardization (D)</p> Signup and view all the answers

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

<p>Primary standard (C)</p> Signup and view all the answers

What is the characteristic feature of a secondary standard chemical?

<p>Reactive nature (D)</p> Signup and view all the answers

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

<p>To determine the exact concentration of the sample (A)</p> Signup and view all the answers

What is an indicator in volumetric titrations used for?

<p>To determine the end point of the reaction (C)</p> Signup and view all the answers

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

<p>To guarantee a quantitative result (B)</p> Signup and view all the answers

What characteristic must an ideal titrimetric reaction possess?

<p>Simple and expressible by a chemical equation (A)</p> Signup and view all the answers

How are end points detected in volumetric titrations?

<p>By observing a change in turbidity (A)</p> Signup and view all the answers

What role does a standard titrant play in volumetric analysis?

<p>Determine the unknown concentration of the sample (D)</p> Signup and view all the answers

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