Chapter 2- Measurement and Experimental Techniques

Upward delivery

Used to collect gases that are less dense than air and soluble in water.

Downward delivery

Used to collect gases that are denser than air and soluble in water.

parallax error

To avoid ________ while taking readings, the volume of liquid is read from the top or bottom of the meniscus formed.

Displacement of water

Used to collect gases that are insoluble or slightly soluble in water.

Calcium Oxide

Used to dry ammonia gas.

Upward delivery

used to collect gases that are less dense than air and soluble in water, e.g

Downward delivery

used to collect gases that are denser than air and soluble in water, e.g

Displacement of water

used to collect gases that are insoluble or slightly soluble in water, e.g

Concentrated sulfuric acid

used to dry most gases except ammonia

Calcium Oxide

used to dry ammonia

Fused calcium chloride

used to dry most gases

Fused Calcium Chloride

Used to dry most gases.

Concentrated sulfuric acid

Used to dry most gases except ammonia.

Gas syringe

The apparatus used to measure volumes of gases.

Meniscus

The curved upper surface of a liquid in a tube.

Balance

The apparatus used to measure mass.

Stopwatch

The apparatus used to measure time.

Thermometer

Measuring instrument for measuring temperature.

Measuring cylinder

The apparatus used to measure volume of liquids.