Question

Hydrogen ion concentration in mol/L in a solution of pH = 5.4 will be : (a) 3.98 x 10⁻⁶ (b) 3.68 x 10⁻⁶(c) 3.88 x 10⁶ (d) 3.98 x 10⁸

Answer 1

pH=-log(H)

5.4=-log x

log x = -5.4

x=antilog(-5.4)

x= -5-1+1-0.40

x=-6+0.60

x=0.3981×10^-5

x=3.981×10^-6

hope it helps you