Which laboratory tool is most appropriate for measuring the mass of a small amount of substance?

• A. Graduated cylinder
• B. Analytical balance
• C. Bunsen burner
• D. Beaker

Answer: (B)

Verified step by step guidance

1. Understand the purpose of each laboratory tool listed: a graduated cylinder is used to measure volume of liquids, a Bunsen burner is used to heat substances, and a beaker is used to hold or mix substances but not for precise measurements.
2. Recall that measuring mass requires a tool that can provide accurate and precise weight readings, especially for small amounts of substances.
3. Identify that an analytical balance is specifically designed to measure mass with high precision, often to the nearest 0.0001 grams, making it ideal for small quantities.
4. Compare the tools and conclude that only the analytical balance is suitable for accurately measuring the mass of a small amount of substance.
5. Therefore, the most appropriate laboratory tool for measuring mass in this context is the analytical balance.