During a practical chemistry session, a student accidentally spills 75.0 cm3 of 3.20 mol dm-3 hydrochloric acid, HCl(aq)\text{HCl(aq)}HCl(aq), onto the laboratory bench. To safely neutralise the spill, they decide to spread solid anhydrous sodium carbonate, Na2CO3(s)\text{Na}_2\text{CO}_3\text{(s)}Na2CO3(s), over the affected area.
What is the minimum mass of anhydrous sodium carbonate required to completely neutralise the spilled acid?
10.1 g10.1\text{ g}10.1 g
12.7 g12.7\text{ g}12.7 g
25.4 g25.4\text{ g}25.4 g
50.9 g50.9\text{ g}50.9 g
