Ammonia is a weak base because its nitrogen atom has an electron pair that readily accepts a proton.
Answer:
Reaction follows frieldel-craft alkylation mechanism
Explanation:
- Reaction between benzene and chloroform in the presence of
follows friedel-craft alkylation of benzene - Firstly, one equivalent of benzene adds onto chloroform by replacing one equivalent of Cl from chloroform.
- Remaining two equivalent of Cl in chloroform are similarly replaced by two equivalent of benzene to produce triphenylmethane
- Reaction mechanism has been shown below
A.) half - life of a radioactive substance is defined as the time during which concentration of the substance becomes half the initial value.
Realize that pH + pOH = 14
so, 9 + pOH = 14 -> pOH = 5
pOH = -log[OH-]
5 = -log[OH-]
plug it into a calculator and you get 1.0 x 10^-5
alternatively, use [OH-] = 10^-pOH to get the same answer
[OH-] = 1.0 x 10^-5