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Mnenie [13.5K]
3 years ago
12

Hydrogen peroxide can decompose to water and oxygen by the following reaction

Chemistry
1 answer:
mestny [16]3 years ago
6 0
To begin calculating, there is one thing you need to remember :1 mole of H2O2=34.0148 g
Then we have 5.00g of H2O2=5/34.0148=0.146995
As you know decomposition of 2moles now has prodused <span>196kj
So, </span><span>q is made due </span>0.146995 moles of H2O2=(-196/2)*0.146995=-14.40551Kj
I'm sure it will help.
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Correct option:

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