A student mixes a solution containing 16.99 g of silver nitrate with a solution containing 7.02 g of sodium chloride.
The equation for the reaction is:
AgNO3+NaCl→AgCl+NaNO3\text{AgNO}_3 + \text{NaCl} \rightarrow \text{AgCl} + \text{NaNO}_3AgNO3+NaCl→AgCl+NaNO3
Relative atomic mass (ArA_rAr): Ag = 107.9, N = 14.0, O = 16.0, Na = 23.0, Cl = 35.5
The student predicts that some sodium chloride will remain when the reaction stops.
Show whether the prediction is correct and calculate the mass of sodium chloride remaining.
Mass of sodium chloride remaining = ............... g
134 exam-style questions on OCR GCSE Chemistry 3.1 Introducing chemical reactions, covering 3.1.1 Writing formulae and balanced chemical equations, 3.1.2 Formulae of compounds from ions, and state symbols, 3.1.3 Conservation of mass and observed changes in mass, 3.1.4 Half equations and balanced ionic equations, 3.1.5 The mole and the Avogadro constant, and 3.1.6 Stoichiometry, limiting reactants and reacting masses. Each one has a worked solution and a mark scheme showing where the marks go.