a) What is the mass of 1 mole of Sodium Sulphate? (1mark) b) The concentration of Sodium chloride in a solutions is 10g/L. How many grams of salts (NaCl) is found in 500 mL of this solution (2 marks) c) Bubu Joe was asked to prepare 2 litres of 0.02 molar calcium carbonate solution. i. What mass of calcium carbonate should he weigh and dissolve? (2marks) ii. How many moles of calcium carbonate is in 250 mL of the prepared solution? (1mark) . can you give the correct answer
