In the laboratory, acid spills can be cleaned up and made safe by spreading anhydrous sodium hydrogencarbonate over the spill to neutralise the acid. A student accidentally spills 60.0 cm3 of 2.50 mol dm−3 HCl(aq)2.50\text{ mol dm}^{-3}\ \text{HCl(aq)}2.50 mol dm−3 HCl(aq) on the bench. What is the minimum mass of anhydrous sodium hydrogencarbonate required to neutralise the acid?
6.30 g6.30\text{ g}6.30 g
12.6 g12.6\text{ g}12.6 g
25.2 g25.2\text{ g}25.2 g
15.0 g15.0\text{ g}15.0 g
199 exam-style questions on OCR A A Level Chemistry Atoms and reactions, covering Atomic structure and isotopes, Compounds, formulae and equations, Amount of substance, Acids, and Redox. Each one has a worked solution and a mark scheme showing where the marks go.