A GLASS CUP OF ORANGE JUICE IS FOUND TO HAVE A POH OF 11.40. CALCULATE THE CONCENTRATION OF THE HYDROGEN ION IN THE JUICE.

2 answers

THE ANSWER'S
Solve the two following equations.
pH + pOH = pK2 = 14. Knowing pOH and pKw you can calculate pH. Then pH = -log (H^+) when get you the hydrogen ion.