Chemistry 5070/11 — May/June 2019
Cambridge O-Level · Multiple Choice · answer key with instant marking and worked solutions
40
questions
40
marks
60
minutes
Topics Atoms, Elements and Compounds · Stoichiometry · Organic Chemistry · Chemical Reactions · Experimental Techniques and Chemical Analysis · Acids, Bases and Salts · +6 more
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Q11MChemical ReactionsExperimental Techniques and Chemical AnalysisFree sample
An experiment is done to measure the rate of reaction between calcium carbonate and dilute hydrochloric acid. The gas formed is collected in a gas syringe.
Which additional pieces of apparatus are essential to measure how the rate of the reaction changes with temperature and the amount of acid used?
Options
| apparatus to measure temperature | apparatus to measure amount of acid used | |
|---|---|---|
| A | balance | thermometer |
| B | measuring cylinder | balance |
| C | thermometer | condenser |
| D | thermometer | measuring cylinder |
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