Worksheet (Concentration of solutions)
1. Calculate the concentration of a solution of sodium hydroxide, NaOH, in mol/dm3,
when 80 g is dissolved in 500 cm3 of water.
2. Calculate the amount of solute, in moles, present in 2.5 dm 3 of a solution whose
concentration is 0.2 mol dm-3.
3. What is the volume of 0.02 moles of a solution of HCl, concentration 2mol/dm 3?
4. What is the concentration of 0.015 moles of a solution of NaCl, concentration
1.5mol/dm3?
5. How many moles are there in 20cm3 of a 0.5mol/dm3 solution of HNO3?
6. How many moles are there in 10cm3 of a 0.1mol/dm3 solution of CuSO4?