Fundamental F, F3

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Genisis Cabral
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Joined: Fri Sep 29, 2017 7:07 am

Fundamental F, F3

Postby Genisis Cabral » Thu Oct 05, 2017 7:21 pm

In reference to nitric acid, in part B of the question, it asks "Without doing a calculation, estimate which element in nitric acid occurs with the greatest mass percentage". To clarify my understanding, in cases where we are asked to avoid calculation to determine the element with greatest mass percentage, would one simply only have to look at the atom ratio between the elements to solve this problem or are there other steps involved?

Posts: 20
Joined: Fri Sep 29, 2017 7:06 am

Re: Fundamental F, F3

Postby sahajgill » Thu Oct 05, 2017 8:00 pm

Since oxygen has the highest molar mass and occurs the most (there is only one atom of hydrogen and one atom of nitrogen but there are three oxygen atoms in the molecule), you can assume that the element that occurs with the greatest mass percentage is oxygen.

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