### 7B.3

Posted:

**Sun Mar 08, 2020 10:04 pm**How do you find the concentration of A in part c of this question?

It says:

Determine the rate constant for each of the following first- order reactions, in each case expressed for the rate of loss of A:

c) 2 A --> B + C

[A] initial = 0.153 M

and that after 115 s the concentration of B rises to 0.034 M.

It says:

Determine the rate constant for each of the following first- order reactions, in each case expressed for the rate of loss of A:

c) 2 A --> B + C

[A] initial = 0.153 M

and that after 115 s the concentration of B rises to 0.034 M.