Answer: 1.018
Step-by-step explanation:
The pH level of a substance indicates the concentration of hydrogen ions (
) in a solution and is calculated by:
In this case the hydrogen ion concentration is 
, where
. Hence:
This means this new substance is acid
Answer:
5^ -7 =1 / 5^7
Step-by-step explanation:
(5^2)-^2/ 5^3
We know that a^b^c = a^(b*c)
(5^2)-^2 = 5^(2*-2) = 5^-4
5^-4/ 5^3
We know that a^b /a^c = a^ (b-c)
5 ^ (-4-3)
5^ -7
If we don't want to use negative exponents
We know that a^ -b = 1/ a^b
1 / 5^7
Answer:
2.40259690054e+16
Step-by-step explanation:
Answer: 22
Step-by-step explanation: Divide the total by pi or 3.14 and the diameter is 22 and the radius is 11
