how do i get the molarity from pH?
the only quantative info i have to work with is: 75.0mL
(0.075 L) solution of "HCl", with a pH of 1.56.
my working is: [H+] = 10-pH = 10-1.56 = 2.75x10^-2M\L
But the question states: "From it's pH, calculate the molarity of HCl".
have I done this with my working or have I just gotten the hydrogen ion concentration ?
Any help or just a point in the right direction would be much appreciated.