Answer:
5.65 is the pH.
Explanation:
I am assuming that you are asking for confirmation on your answer. The answer is 5.65.
You would do:
[pOH] = -log[OH-]
= -log[4.5*10^-9]
equals about 8.3468
To find pH your would subtract the pOH from 14.
14-8.3468 = 5.65 << Rounded to match the answer choices.
Answer:
Potassium (K) and Lithium (Li) for the fist one i cant see the second
Explanation:
The answer is 3. As 5 * 3 = 15.
Is there any other equations I may be able to help you with? :)
Potassium has 20 neutrons
Hope this helps