The formula of calcium nitrate is Ca(NO3)2\text{Ca}(\text{NO}_3)_2Ca(NO3)2.
Calculate the number of atoms that combine together to form 41.0 g of calcium nitrate. Give your answer in standard form to 3 significant figures. (relative atomic masses: N=14.0\text{N} = 14.0N=14.0, O=16.0\text{O} = 16.0O=16.0, Ca=40.0\text{Ca} = 40.0Ca=40.0; Avogadro constant = 6.02 × 1023 mol-1)
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.