Question

Lemon juice has a pH 2what is the concentration of H ions

Answer 1

Answer:

1000000

this is the concentration of h+ ions

Answer 2

Answer:

Given pH=2

pH is defined as the logarithm of the reciprocal of the hydrogen ion concentration.

pH=$-log[H^{+} ]$

Replace pH by 2

$2=-log[H^{+} ]$

multiply each side of the inequality by -1:

$-2=log[H^{+} ]$

Take the exponential with base 10 of each side:

$10^{-2} =10^{log[H^{+}] } =[H^{+} ]$

interchange the left and right side and evaluate:

$[H^{+} ]=10^{-2} =0.005012$