Question 37
Which of these solutions is the most basic?
[H3O+] = 4 x 10-10 m
[OH] = 3 * 10-4M
[H3O+] = 6× 10-9
15H7= 2 x 10-6M
3 pts

the answer is learned

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.