## ashleygee A solution with a pH of 10 has less or more hydrogen ion concentration than PH7 one year ago one year ago

1. benjaminf

More acidic means more [H+] and less acidic (more basic) means less [H+]. pH 10 is less acidic (more basic) than neutral pH 7 so there is less [H+].

2. ashleygee

it would be a 1000 times less right . not 3 ? Because dont you add a zero or something while going down or is that up? I get a little confused.

3. benjaminf

You're right, it's a logarithmic relationship: pH means -log[H+] and pH = 7 means $\log_{10}(1\times10^{-7}) = 7$ so the difference between $10^{-10}$ and $10^{-7}$ is x1000

4. benjaminf

^correction: there should be a negative in that log eqn too.