Test on Gas Collection and Experimental Setup Diagrams
Gas Collection & Experimental Setup Diagrams: A Student Guide
Test: Collecting and measuring gases in experiments
20 questions
Question 1: When collecting a gas sample specifically to measure its volume, a test tube is the most appropriate apparatus according to the provided study materials.
A. Ano
B. Ne
Explanation: The study materials state that if you just want to collect a sample to test and 'don’t need to measure a volume', you can use a test tube. For measuring the volume of gas, the materials recommend either a gas syringe (the most accurate way) or displacing water from a measuring cylinder.
Question 2: When collecting gas by displacing water, the initial level of water in the measuring cylinder must be recorded.
A. Ano
B. Ne
Explanation: The study materials explicitly state that when collecting gas by displacing water, one must "Record the initial level of the water in the measuring cylinder."
Question 3: The method of collecting gas by displacing water is considered more accurate for measuring the volume of gas produced than using a gas syringe.
A. Ano
B. Ne
Explanation: Collecting gas by displacing water is less accurate than using a gas syringe because some gases can dissolve in water, resulting in less gas collected in the measuring cylinder than actually produced.
Question 4: When collecting gas by displacing water, the gas enters the measuring cylinder, causing the water level inside the cylinder to rise.
A. Ano
B. Ne
Explanation: As the gas enters the measuring cylinder, the water is pushed out, which means the water level inside the measuring cylinder would fall, not rise.
Question 5: Collecting the gas produced by a reaction can be done to investigate its rate.
A. Ano
B. Ne
Explanation: The study materials specify that collecting the gas produced by a reaction can be done to investigate the rate of reaction.