5. Practical Skills

Quantitative Techniques — Quiz

Test your understanding of quantitative techniques with 5 practice questions.

Practice Questions

Question 1

Which of the following best describes the purpose of using a volumetric pipette in quantitative techniques?

Question 2

A student weighs a sample of calcium carbonate, $\text{CaCO}_3$, and records a mass of $3.45 \text{ g}$. What is the number of moles of $\text{CaCO}_3$ in the sample? (Molar mass of $\text{CaCO}_3$ is $100.1 \text{ g/mol}$)

Question 3

Which of the following steps is essential when performing a gravimetric analysis to ensure accurate results?

Question 4

A student uses a burette to deliver $25.00 \text{ cm}^3$ of $0.200 \text{ mol/dm}^3$ hydrochloric acid, $\text{HCl}$, into a flask containing sodium hydroxide, $\text{NaOH}$. If the neutralization reaction is complete at this volume, what amount (in moles) of $\text{HCl}$ was added?

Question 5

When using a volumetric flask to prepare a standard solution, why is it important to add the final portion of solvent drop by drop?