8. The rate constant for the reaction below is 6.2 x 10−5 mol L−1s−1. If the initial concentration of A is 0.0500 M, what is its concentration after 115 s?

The concentration after 115 seconds is 0.0496 M

Explanation:

Applying integrated rate law for a first-order reaction, we will have;

where;

is the concentration at a time t

is the initial concentration

k is the rate constant for the reaction

t is the given time

Given;

 = 0.05 M

k = 6.2 x 10⁻⁵ mol L⁻¹s⁻¹

t = 115 seconds

Substitute these values and solve for

Therefore, the concentration after 115 seconds is 0.0496 M

if two electrons have the same n, the same ℓ, and the same ml, then they are in the same orbital. the pauli exclusion principle states that no two identical fermions (a fancy word for electrons and other subatomic particles like electrons) may occupy the same quantum state in an atom simultaneously.

a patient chooses to not take a beneficial medical treatment.

explanation: