It would be count ice layers
Answer:
Ka =
Explanation:
Initial concentration of weak acid =
pH = 6.87
HA dissociated as:
(0.00045 - x) x x
[HA] at equilibrium = (0.00045 - x) M
x =
0.000000135 <<< 0.00045
Answer:
option "B" is correct (substance 2)
The least common multiples of 4, 10, and 16 is 80.
I believe that the answer is A i could be wrong though.