The acid concentration of a sample of acid rain with a pH of 4.20 would be 0.000063 M.
What is pH?
The pH of a substance is the degree of acidity or alkalinity of a substance. It is mathematically expressed as:
pH = - log [[tex]H^+[/tex]]
Where [[tex]H^+[/tex]] is the hydrogen ion concentration or molarity of the solution.
In this case, the pH is 4.20. Substituting into the equation:
4.20 = - log [[tex]H^+[/tex]]
log [[tex]H^+[/tex]] = - 4.20
[[tex]H^+[/tex]] = Antilog -4.20
= 0.000063 M
Thus, the concentration of the sample acid rai with a pH of 4.20 would be 0.000063 M
More on acid rain can be found here: https://brainly.com/question/22143130
#SPJ1
