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GREYUIT [131]
3 years ago
8

The rate constant for this zero‑order reaction is 0.0230 M ⋅ s − 1 at 300 ∘ C. A ⟶ products How long (in seconds) would it take

for the concentration of A to decrease from 0.780 M to 0.220 M?
Chemistry
1 answer:
mafiozo [28]3 years ago
5 0

Answer:

t=24.35\ seconds

Explanation:

Using integrated rate law for first order kinetics as:

[A_t] = [A_0]-kt

Where,  

[A_t] is the concentration at time t

[A_0] is the initial concentration

Given that:

The rate constant, k = 0.0230 Ms⁻¹

Initial concentration [A_0] = 0.780 M

Final concentration [A_t] = 0.220 M

Time = ?

Applying in the above equation, we get that:-

0.220 = 0.780-0.0230\times t

780-23t=220

t=\frac{560}{23}

t=24.35\ seconds

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