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CHEM0707010
Find the number of mole of sodium chloride in 50cm3 of sodium chloride solution 2 mol/dm3.
CHEM0707020
Find the volume of sodium chloride aqueous, 0.5 mol/dm³ that contains 0.7 mol of sodium chloride.
CHEM0707030
Find the number of mole of sodium ions in 100cm³ of 0.5 mol/dm³ sodium sulphate solution.
CHEM0707040
Calculate the number of mol of hydrogen ions in 200cm³ of 0.4 mol dm⁻³ sulphuric acid.
CHEM0707050
Which of the following acids contains the greatest number of hydrogen ions?
CHEM0707060
Find the mass of zinc chloride that is needed to produce 500cm3 of 0.5 mol/dm3 zinc chloride solution. (Relative atomoic mass: Zn = 65; Cl = 35.5)