Posted by DrewS on Tuesday, March 19, 2013 at 7:26pm.
Which solution below has the highest concentration of hydronium ions?
pH = 9.82
pH = 12.6
pH = 7.93
pH = 3.21
pH = 7.00

Chemistry  Amanda, Tuesday, March 19, 2013 at 7:27pm
hydronium is [OH] ions, so you looking for the Ph that is most basic, which is your highest number 12.6

Chemistry  DrewS, Tuesday, March 19, 2013 at 7:52pm
Thanks but its actually pH 3.21

Chemistry  Devron, Tuesday, March 19, 2013 at 7:58pm
The number in the pH is equal to the negative exponent of 10. So, a pH of 7 has a concentration where the exponent is 7, a pH of 9 will have an exponent equal to 9 and so on. So the lowest pH will have the highest H ion concentration. 10^3 is bigger then 10^9. So the answer is ph=3.21.

Chemistry  Karly, Monday, December 15, 2014 at 10:30pm
The solution with with the highest concentration of hydronium ions will be the solution with that appears the most acidic. In which case the solution with the smallest PH... 3.21