Question

Calculate the number of sulphate ions in 100 ml of 0.001m h2so4 solution study rankers

Answer 1

1 mole of H2SO4 contains 1 mole of SO4(-2) ions


Number of moles of H2SO4 = volume in litres x molarity

                                             = (100/1000) x 0.001

                                             = 0.0001 moles


There are 0.0001 moles of suphate ions


Number of sulphate ions = number of ions x Avogadro’s Number
          
                                        = 0.0001 x 6.022 x10^23


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