Question

Calculate the pH of 0.04 M HNO3 solution​

Answer 1

Explanation:

Radius of a circle is 10 cm if its diameter is increased by 100% its area is increased by

a) 150%

b) 200%

c) 250%

d) 300%

Answer 2

Explanation:

Concentration of HNO3 = 0.04M.

[H3O+] = 0.04 mol dm-3

pH = – 1og[H3O+]

= – log (0.04)

= – log(4 x 10-2)

= 2 – log4 = 2 – 0.6021.

= 1.3979 = 1.40.