In the laboratory, acid spills can be cleaned up and made safe by spreading anhydrous sodium carbonate over the spill to neutralise the acid. A student accidentally spills 75.0 cm3 of 1.60 mol dm−3 HNO3(aq)1.60\text{ mol dm}^{-3}\ \text{HNO}_3(\text{aq})1.60 mol dm−3 HNO3(aq) on the bench.
What is the minimum mass of anhydrous sodium carbonate required to neutralise the acid?
4.98 g4.98\text{ g}4.98 g
6.36 g6.36\text{ g}6.36 g
12.7 g12.7\text{ g}12.7 g
25.4 g25.4\text{ g}25.4 g
