Magnesium nitrate contains magnesium ions and nitrate ions. Calculate the relative formula mass (MrM_rMr) of magnesium nitrate, Mg(NO3)2\text{Mg}(\text{NO}_3)_2Mg(NO3)2.
Relative atomic masses (ArA_rAr):
258 exam-style questions on Edexcel GCSE Chemistry Calculations involving masses. Each one has a worked solution and a mark scheme showing where the marks go.