GCSE Chemistry - Moles, Concentration & Volume Calculations

What is the equation that links the number of moles of an aqueous substance to its concentration and volume?

• n = c/v

• n = v/c

• n = c * v

• n = v - c

How do we measure volume?

• Liters

• Milliliters

• Decimeters cubed

• Centimeters cubed

How do we measure concentration?

• Moles per liter

• Moles per milliliter

• Moles per decimeter cubed

• Moles per centimeter cubed

What is the formula for concentration, volume, and moles?

• c, v, m

• m, c, v

• n, c, v

• v, c, n

If we have 800 cm^3 of sodium hydroxide at a concentration of 0.2 mol/dm^3, how many moles do we have in total?

• 0.08 moles

• 0.16 moles

• 0.32 moles

• 0.64 moles

If we have 1.5 dm^3 of hydrochloric acid and it contains 0.6 moles of hydrochloric acid, what is the concentration?

• 0.2 mol/dm^3

• 0.3 mol/dm^3

• 0.4 mol/dm^3

• 0.5 mol/dm^3

If 30 cm^3 of 0.5 mol/dm^3 potassium hydroxide reacts completely with 25 cm^3 of sulfuric acid, what is the concentration of the sulfuric acid?

• 0.1 mol/dm^3

• 0.2 mol/dm^3

• 0.3 mol/dm^3

• 0.4 mol/dm^3

What is the molar ratio between potassium hydroxide and sulfuric acid?

• 1:1

• 1:2

• 2:1

• 2:2

If we have 0.015 moles of potassium hydroxide, how many moles of sulfuric acid did it react with?

• 0.003 moles

• 0.005 moles

• 0.0075 moles

• 0.01 moles