Chemistry, asked by priyanshukumar4421, 11 months ago

A first order reaction is half completed in 45 minutes what is time requird for 75% completion

Answers

Answered by fathimanidha2

0

Answer:

90mimutes

Explanation:

100 is the initial percentage,then for 50percent complete the time taken is 45 minures.

another 45 min 25percent reacts

therefore total reacted is 75 percent of the initial amount.

Hence the answer is 90 min

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