Answer:
pH= 9.2
Explanation:
Henderson hasselbach equation
pKa= log Ka= log (4.9 x 10^-10)=9.3
pH= 9.2
<span>Oxygen obey the octet rule when reacting to form compounds by adding 2 electrons. Its means the charge on Oxygen is -2.
</span>It has oxidation state −1 is found in a few compounds such as <span>peroxides.</span>
An induced current is a conducting loop that is exposed to a changing magnetic field. And it is knows as induced current