Answer:
![[A_t]=0.037\ M](https://img.qammunity.org/2021/formulas/chemistry/college/jw5fbmzu23g2c0gfb5pelg5cycqy4x7uus.png)
Step-by-step explanation:
(a)
Given that:
Rate constant, k = 0.0347 min⁻¹
The expression for the half-life is:-
Where, k is rate constant
So,
(b)
Using integrated rate law for first order kinetics as:
Where,
is the concentration at time t
is the initial concentration
Given that:
The rate constant, k =
min⁻¹
t = 60 min
Initial concentration
= 0.300 M
Final concentration
=?
Applying in the above equation, we get that:-
![[A_t]=0.037\ M](https://img.qammunity.org/2021/formulas/chemistry/college/jw5fbmzu23g2c0gfb5pelg5cycqy4x7uus.png)