Question

Black coffee has a pH of 5, therefore its H+ concentration is __________ than urine with a pH of 6.

Answer 1

Hi
Black coffee has a PH of 5,therefore its H+ concentration is more than urine with a PH of 6
as 0-6 PH it is acid
0 is strong acid
6 is weak acid
The H+ ions concentration increases from 6-0.
Hope this help u friend.

Answer 2

Answer:

10 times more than that of urine

Explanation:

[H+] for black coffee = 10^-5

[ H+] for urine = 10^-6

on dividing both we get

[H+] conc. of black coffee = 10 ( [H+] conc. of urine)