Recent content by Jade_punk181

Well I've seen the general theories ans tests but our teacher never gave us an example or a situation like this one, that is why I can't figure out how to even start the problem.

Homework Statement Express 7.54545454545 . . . as a rational number, in the form p/q where p and q are positive integers with no common factors. p = ? and q = ? This problem is nothing like I've seen before, so I don't even have a clue on how to start it.

Homework Statement A solid acid is dissolved in enough water to make 200 mL of a solution. 40.0 mL of the solution is titrated to a phenolphtalein end point with an NaOH solution. The neutralized solution and the remainder of the acid solution are then mixed and the pH of the resulting...