A 1.50-L acid solution contains 0.35 g total of HCl and HBr. The pH of the solution is 2.40. What are the masses of HCl and HBr in the solution?
Here, we are going to calculate the masses of HCl and HBr in the solution.
pH of the solution is =2.40
[H3O+] = 10-pH = 10-2.40
Thus, the concentration of hydronium solution is = 0.00398 M
Amount of hydronium ion in the solution is = 1.50-L x 0.00398 mol/L = 0.00597 mol
Thus, total mass of the solution is = 0.35 g
Molar mass of the solution = = 58.62 g/mol