The sulfate of element Z has the formula Z2SO4\text{Z}_2\text{SO}_4Z2SO4.
The relative formula mass (MrM_rMr) of this sulfate is 174.
Using this information, calculate the relative atomic mass (ArA_rAr) of Z.
(Relative atomic masses: S = 32, O = 16)
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.