Calculations involving the mole can be used to determine unknown concentrations, volumes and masses in reactions. One mole of any gas occupies 24 dm3 at room temperature and pressure.
What is 20 cm3 in dm3?
2.0 mol of solute is dissolved in 0.50 dm3 of water. What is the concentration of the solution formed in mol/dm3?
What is the concentration of 0.100 mol/dm3 NaOH solution in g/dm3? (Relative formula mass of NaOH = 40.0)
What is 5000 cm3 in dm3?
0.5 mol of solute is dissolved in water to make 2 dm3 of solution. What is the concentration of the solution in mol/dm3?
What is the concentration of 2.0 mol/dm3 of sodium chloride solution in g/dm3? (Relative formula mass of NaCl = 58.5)
A solution has a concentration of 8.0 g/cm3. What mass of NaOH is in 5 dm3 of this solution? (Relative formula mass of NaOH = 40.0)
A solution of NaOH has a concentration of 4.0 g/dm3. What mass of sodium hydroxide is in 0.250 dm3 of this solution? (Relative formula mass of NaOH = 40.0)
0.01 dm3 of hydrochloric acid solution contains 0.01 mol of dissolved hydrogen chloride. What is the concentration of the acid in mol/dm3
What volume of 2.0 mol/dm3 of sodium hydroxide solution contains exactly 1.0 mol of sodium hydroxide?