Question

To a solution of , solid is added. When x grams are added the ph = , when y grams are added ph = . Given that = 0.6, calculate the ratio x : y.

Answer 1

What is the pH of a solution by mixing 50 ml of 0.4N HCL and 50 ml 0.2 N NaOH?

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17 ANSWERS



Sandhya Deshwal, former Research Scholar

Answered Oct 17, 2016

Mole = concentration x volume

mole of NaOH = 50ml x 0.2 = 10.0

mole of HCl = 50ml x 0.4= 20.0

10 mole of NaOH exactly neutralized by 10 mole of HCl.

NaOH + HCl = NaCl + H2O

that is 20 -10 = 10 HCl mole

Con of H+ = no of mole of H+ / total volume of solution (50+50 ml = 100 ml)

= 10/100 = 0.1

pH = log ( H+)

= log (0.1) = 1

s0 the pH of solution will be one(1) .