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netineya [11]
3 years ago
12

Please help I can't balance and Google isn't helping

Chemistry
1 answer:
DiKsa [7]3 years ago
5 0
The first one is right and so is eight you have to add them together to see if they go together if they dont add what is missing
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The compound Xe(CF3)2 decomposes in afirst-order reaction to elemental Xe with a half-life of 30. min.If you place 7.50 mg of Xe
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Answer:

t=147.24\ min

Explanation:

Given that:

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So,  

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Using integrated rate law for first order kinetics as:

[A_t]=[A_0]e^{-kt}

Where,  

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Final concentration [A_t] = 0.25 mg

Time = ?

Applying in the above equation, we get that:-

0.25=7.50e^{-0.0231\times t}

750e^{-0.0231t}=25

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