First slide

PH of strong acids and strong bases

Question

When 100 ml of N/10 NaOH are added to 50 ml of N/5 HCl, the pH of the resulting solution is

Moderate

A

7
B

greater than 7
C

less than 7
D

zero

Solution

$NaOH + HCl \to NaCl + H_{2} O$
100x 1/10 50 x1/5
=10 =10
Since threre is no limiting reagent, everything will be neotralised. P^H of a neutral salt solution is 7 at 25^oC

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