AP EAMCET 22 May 2023 Shift 2 Paper

Question : 133 of 160

Marks: +1, -0

500‌mL of 0.1M‌HCl mixed with 500‌mL of 0.02M‌HA (weak acid) solution. To this solution, 2g of solid NaOH is added. What is the pH of resultant solution?
(Given Ka of HA is 4×10−10, molar mass of NaOH is 40gmol−1;log‌2=0.3;log‌4 =0.6)