Acid solutions can be dilute or concentrated. Concentration is calculated from mass of solute and volume of solvent. Acids may be weak or strong depending on how far the acid breaks up when dissolved.
Hydrochloric acid is made by dissolving hydrogen chloride in water. What name is given to the hydrogen chloride?
What name is given to a solution of hydrochloric acid that contains only a small amount of dissolved HCl?
What does it mean when a chemist says that an acid dissociates in water?
The acid breaks up into ions
The acid dissolves
The acid heats up the water
Lactic acid is a weak acid, which forms lactate salts. Which of these would be found in a solution of lactic acid?
Lactic acid molecules only
Hydrogen ions and lactate ions only
Hydrogen ions, lactate ions and lactic acid molecules
Which solution contains most hydrogen ions?
10 cm3 of dilute hydrochloric acid (pH 4)
10 cm3 of concentrated ethanoic acid (pH 2)
10 cm3 of water (pH 7)
1 cm3 of nitric acid (pH 1.3) is diluted with water to make 1000 cm3 of diluted nitric acid. What is the pH of the diluted nitric acid?
How many cm3 are there in 1 dm3 ?
40g of copper(II) sulfate is dissolved in 2 dm3 of water. What is the concentration of the solution?
20 g dm-3
40 g dm-3
80 g dm-3
4 g of sodium hydroxide is dissolved in 200 cm3 of water. What is the concentration of the solution?
8 g dm-3
A sample of sea water has a sodium chloride concentration of 35 g/dm3. What mass of sodium chloride can be obtained from 5 dm3 of sea water?