## anonymous one year ago pH = −log of the concentration of protons (H+ in moles per liter or molar.) A solution has a H+ concentration of 3.16 × 10−9 M. What is the pH of the solution? I feel like I must be typing this in my calculator wrong.

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1. lfreeman1285

Try putting it in as the log(3.16 x 10^-9), and then making that number negative.

2. IrishBoy123

it's $$log_{10}$$, if that helps

3. butterflydreamer

your equation to find pH is given by: $pH = -\log _{10} \left[ H^+ \right]$ So we're given $\left[ H^+ \right] = 3.16 \times 10^{-9}$ Just plug into the equation and you'll get your answer :)