can someone teach me how to calculate the pH of a solution when the morality is given. For example if the solution is at 298 k. What is the pH of 2.3 10-2 M HCl. I don't want just the answer, but explanation on how to do it.

Question

can someone teach me how to calculate the pH of a solution when the morality is given. For example if the solution is at 298 k. What is the pH of 2.3  10-2 M HCl. I don't want just the answer, but explanation on how to do it.

aaronq · Answer

298 K is basically 25 degrees celsius.  

pH is just the negative logarithm of the hydronium ion concentration

so, pH=-log[H+]

anonymous · Answer

so it would be like -log(2.3*10^-2)

aaronq · Answer

yep

anonymous · Answer

i got 1.6 but it says that's wrong

aaronq · Answer

it is 1.64, how many sig figs do you have to give