Answer
a) 4.76
b) 9.19
c) 4
d) 4.82
Work Step by Step
pH is defined as the negative logarithm of hydrogen ion concentration
pH = -log[H]
a) - log($1.75 \times 10^{-5})$ =4.76
b) - log($6.5\times 10^{-10}$) = 9.19
c) - log($1\times 10^{-4}$) = 4
d) - log($1.5\times 10^{-5}$) =4.82
