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Topic: Percentage Composition  (Read 1760 times)

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Offline Pranav4312

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Percentage Composition
« on: May 07, 2018, 08:31:41 AM »
when I am trying to find the percentage composition of Aluminium from Al2O3·3H20 I get that it is 34.59% while the answer say th percentage composition for Aluminium is 44.2%

Someone plz tell me what I'm doing wrong

Al%=(2×26.98)/(53.96+(6×16)+(6×1.008))
=34.59%
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Offline Borek

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Re: Percentage Composition
« Reply #1 on: May 07, 2018, 10:00:53 AM »
Answer key is wrong, 34.59% is the right answer.
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