Which of these solutions is most basic? A
[OH-] = 1 x 10-4 M

B
[H+] = 1.2 x 10-11 M

C
​[OH-] = 1 x 10-13 M

D
[H+] = 1 x 10-2 M

E
[H+] = 1.9 x 10-10 M

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.