Question

When 50 cm3 of 1.5 mol dm-3 HCl is added to 100 cm3 of 1.5 mol dm-3 sodium hydroxide solution, x kJ of heat is produced. When 45 cm3 of sulphuric acid is added to 100 cm3 1.5 mol dm-3 sodium hydroxide, the same amount of heat is produced. What is the concerntration of sulphuric acid?

Answer 1

50x1.5/1000 = 0.075.

0.075 x 1000/2 x 45= 0,833333333