Questions using Molarity in reactions |
Calculate the following:
1) 25cm^{3} of 3 moldm^{-3} hydrochloric acid was exactly neutralised by 35cm^{3} of sodium hydroxide solution. What is the concentration of the sodium hydroxide solution?
2) 50cm^{3} of 2 moldm^{-3} sulphuric acid was exactly neutralised by 80cm^{3} of calcium hydroxide solution. What is the concentration of the calcium hydroxide solution?
3) What mass of sodium hydroxide must be added to 500cm^{3} of water to make a 0.5 moldm^{-3} solution
4) 150cm^{3} of Nitric acid was exactly neutralised by 100cm^{3} of 1 moldm^{-3} sodium oxide solution. What is the concentration of the Nitric acid?
5) 6g of lithium oxide is added to 100cm^{3} of water. What is the concentration of the solution formed?
6) 65cm^{3} of hydrochloric acid was exactly neutralised by 35cm^{3} of 0.5 moldm^{-3} sodium hydroxide solution. What is the concentration of the hydrochloric acid?
7) 25cm^{3} of sulphuric acid was exactly neutralised by 5g of sodium. What is the concentration of the sulphuric acid?