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Sergio039 [100]
3 years ago
9

The rate constant for this zero-order reaction is 0.0270 M s^-1 at 300 C. How long (in seconds) would it take for the concentrat

ion of A to decrease from 0.780 M to 0.220 M?
Chemistry
1 answer:
andrew-mc [135]3 years ago
5 0

Answer:

t = 20.74 sec

Explanation:

Using integrated rate law for first order kinetics as:

[A_t] =[A_0] -kt

Where,  

[A_t] is the concentration at time t  = 0.220 M

[A_0] is the initial concentration  = 0.780 M

k is the rate constant = 0.0270 M s⁻¹

So,  

0.220 =0.780 -0.0270\times t

<u>t = 20.74 sec</u>

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