Question

Calculate molarity of H^+ ions in 2M 1L H2SO4 .
​

Answer 1

1 M H

2

SO

4

solutio has 2M H

+

ions

Therefore, moles of H

+

in:

200 ml of 1M H

2

SO

4

= 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

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