what is the pH of a solution that contains 25 grams of hydrochloric acid (hcl) dissolved in 1.5 liters of water?

Question

anonymous · Answer

pH can be defined by a formula which is available here: http://en.wikipedia.org/wiki/PH. To help with the first bit, you should find out the molarity of the solution first. I reckon it's 25g divided by 36.5grams per mole over 1.5. I make this 0.456M. The pH should be between 0 (1M HCl) and 1 (0.1M HCl). Hope this helps you understand the concept.

anonymous · Answer

You need to find the molarity of the HCl, and then you have to write out the balanced formation equation for the H+ I think, and then find the concentration of H+ and put that into the equation pH=-log[H+]