Calculate: concentration is measured by molarity (m), or moles per liter. brackets are also used to symbolize molarity. for example, if 0.6 moles of hno3 are dissolved in a liter of water, you would say [hno3] = 0.6 m. because hno3 is a strong acid, it dissociates almost completely in water. that means the concentration of h+ is very nearly equal to that of hno3. what is [h+] if [hno3] is 0.01 m? _it is also 0. the ph of a solution is equal to the negative log of h+ concentration: ph = –log[h+] what is the ph of this solution? (use the "log" button on your calculator.) what is the ph of a 0.6 m hno3 solution?