HELP! pH = -log10[H+]. If pH 3.5 what is [H+]?

To find concentration H+ you want to do the inverse log

So 3.5= -log10[x] = 10^-pH
x= 10^-3.5
So [H+]= 3.16*10^-4 M or mol/L

Idon't know hope someone you

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