Measurements and apparatus

One of the instructions for an experiment reads as follows.:Quickly add 50cm3 of acid

What is the best piece of apparatus to use?

• a burette

• a conical flask

• a measuring cylinder

• a pippette

The diagram shows three pieces of apparatus that are used for measuring the volume of a liquid.

What are these pieces of apparatus?

• A.

  burette,

  measuring cylinder, pipette

• B.

  burette,

  pipette, measuring cylinder

• C.

  measuring cylinder, burette,

  pipette

• D.

  measuring cylinder, pipette,

  burette

The four pieces of apparatus shown below are used in chemical experiments. Which statement about the apparatus is correct?

• The burette measures the volume of liquid added in a titration.

• The measuring cylinder measures the mass of a substance used in an experiment.

• The pipette measures the volume of gas given off in a reaction.

• The thermometer measures the density of a solution.

Which row shows the pieces of apparatus used to measure the 25.0cm3 of hydrochloric acid, the volume of aqueous sodium hydroxide and the 15cm3 of water

• A

• B

• C

• D

A student was provided with only a thermometer, a stopwatch and a beaker. What could the student measure?

• 10.5g solid and 24.8cm3 liquid

• 10.5g solid and 25°C

• 24.8cm3 liquid and 45 seconds

• 25°C and 45 seconds

A student carries out an experiment to find how fast 3 cm pieces of magnesium ribbon dissolve in 10cm3 samples of sulfuric acid at different temperatures. Which piece of apparatus does the student not need?

• balance

• measuring cylinder

• stop-clock

• thermometer

A student takes 2 g samples of calcium carbonate and adds them to 20 cm3 samples of dilute hydrochloric acid at different temperatures. She measures how long it takes for the effervescence to stop. Which apparatus does she use?

• A

• B

• C

• D

During a reaction, the following changes take place. 1 The temperature rises. 2 A gas is given off. Which apparatus is required to measure the rate of this reaction?

• balance and burette

• balance and gas syringe

• gas syringe and burette

• gas syringe and stopclock