Question

10 ml of m/200 h2so4 is mixed with 40 ml of m/200 h2so4. The ph of the resulting solution is

Answer 1

Explanation:

Total volume of H

2

SO

4

solution =10+40=50 ml

Total conc. of hydrogen ion =

400

10×2

+

200

40×2

=

40

18

mol

So, [H

+

]=

40×50

18

=

2000

18

So, pH=−log[H

+

]=2