Question

200 ml of M/2 Hcl and 300 ml of M/10 of HNO3 were mixed.What is the concentration of H+ ion in the solution

Answer 1

Hii

Explanation:

1 M H2SO4

solutio has 2M H+ions

Therefore, moles of H+in:

200 ml of 1M H2SO4

= 2×0.2L×1mol/L=0.4

300 ml 0f 3M HCl = 0.3L×3mol/L=0.9

100 ml 0f 2M HCl = 0.1L×2mol/L=0.2=1.5

Total volume = 1L

So [H+] = 1.5 mol/L