First slide

PH scale, PH of strong acids and strong bases

Question

4.0 g of Na OH and 4.9 g of H₂ SO₄are dissolved in water and volume is made upto 250 mL. the pH of this solution is :

Easy

A

7.0
B

1.0
C

2.0
D

12.0

Solution

$H_{2} {SO}_{4} + 2 NaOH ⟶ {Na}_{2} {SO}_{4} + 2 H_{2} O 0.05 mole 0.1 mole - - 0.05 0.1 Aqueous solution of SASB type salt i, e pH = 7$

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