Lesson: Chapter 17 — Rate of Reaction

17. Measuring the rate 3 of 6 Reset answers

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Question 3

6.0 g of limestone was used up in 5 minutes. What was the rate of reaction?

A 1.2 g min⁻¹ B 0.83 g min⁻¹ C 5.0 g min⁻¹ D 30 g min⁻¹

The right answer is the one marked above.

1.2 g min⁻¹. Divide the amount of reactant used up by the time taken: 6.0 g ÷ 5 min = 1.2 g min⁻¹.

0.83 comes from dividing the wrong way round. 30 comes from multiplying instead of dividing.

Answer the question to continue.