Maple Syrup Equation

Question

The pH of maple syrup is 5.2. Calculate the concentration of H+)ions. PH = − log [H+] (show work and write your answer in scientific notation, round to tenths)

Answer 1

pH = 5.2 = - log[H⁺], where [H⁺] is measured in moles/liter or M (by definition of pH)

Let us multiply both sides by -1

-5.2 = log[H⁺]

and convert the equation from logarithmic to exponential form

10^-5.2 = 10^log[H+]

Finally

[H⁺] = 10^log[H+] = 10^-5.2 = 6.3 x 10^-6 M