1.1 Experimental Design

Which piece of apparatus should be used for the accurate measurement of 26.00 cm³ of a liquid?

• a beaker

• a burette

• a measuring cylinder

• a pipette

Which row gives the properties of a gas which can be collected by both methods?

• 1: insoluble in water, 2 : denser than air

• 1: insoluble in water, 2 : less dense than air

• 1: soluble in water, 2 : denser than air

• 1: soluble in water, 2 : less dense than air

Which apparatus can be used to measure 35 cm³ of hydrogen

(a)  

Which row shows an increasing order of accuracy in measuring the volume of a solution?

• beaker, burette, measuring cylinder

• beaker, measuring cylinder, burette

• burette, measuring cylinder, beaker

• measuring cylinder, beaker, burette

A student carried out an experiment to study the rate of reaction when a piece of magnesium was added to some dilute hydrochloric acid. Which piece of apparatus is not required for this experiment?

• conical flask

• stop-watch

• gas syringe

• Bunsen burner

A student is provided with two drying agents: concentrated sulfuric acid and calcium oxide. Which drying agent should he use to collect a sample of dry ammonia?

• concentrated sulfuric acid

• calcium oxide

How is ammonia gas collected during an experiment?

• upward delivery

• downward delivery

• displacement of water