Snapquiz - Rate of Reaction

Question 1. Why is a high rate of reaction usually more desirable to industrial chemists?

Producing more product in a given time is usually safer.
Producing more product in a given time is usually cheaper.
Producing more product in a given time is usually purer.
Producing more product in a given time is usually easier.

Question 2. A reaction between a 1.0 molar hydrochloric acid solution and some 15% pure copper carbonate ore takes 12 minutes to form 4.8g of copper chloride. What is its rate of reaction?

0.067 moles per percent.
25% per minute.
0.32g per percent.
0.4g per minute.

Question 3. When calculating the rate of change in chemistry, which variable could you be observing change?

Temperature of solution.
Amount of product formed.
Time taken.
Odour.

Question 4. Which is the highest rate of reaction?

7g per minute.
300g per hour.
0.1g per second.
0.36kg per hour.

Question 5. When calculating the rate of change in chemistry, which variable will you usually be dividing by?

Time.
Mass.
Concentration.
Volume.

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