How many moles of gas are present in 6 dm³ of sulfur dioxide at r.t.p.? Include unit mol in your answer.

What is the volume, in dm³, of 64 g of oxygen gas at r.t.p.?

What is the mass of 24 dm³ of methane CH₄ gas at r.t.p.?

What is the mass of 12 dm³ of ammonia NH₃ gas at r.t.p.?

0.05 mole of KOH were added to 100 cm³ of water. What is the concentration of KOH solution in mol/dm³?

A beaker contains 30 cm³ of 3 mol/dm³ of sulfuric acid. What is the number of moles of acid in the beaker?

The concentration of a solution of nitric acid is 0.1 mol/dm³. If 0.025 mole of nitric acid is present in a beaker, what is the volume, in dm³, of the solution in the beaker?

The concentration of a bottle of hydrochloric acid is 73 g/dm³. What is the mass of HCl in 2 dm³ of this bottle of acid?

The concentration of a bottle of hydrochloric acid is 73 g/dm³. How many moles of HCl are there in 2 dm³ of this bottle of acid?

What mass of sodium chloride would be obtained if 1 dm³ of 1.0 mol/dm³ sodium chloride solution was evaporated to dryness?

14 g of potassium hydroxide was dissolved in water to form 0.1 dm³ of an aqueous solution. What was the concentration of this KOH solution in mol/dm³?