The formula of a compound is H2NO3. the percent composition of hydrogen in this compound - 3.148 %.
The percent composition of any compound by exhibiting the composition of all the elements present. It is the ratio of the amount of particular element present in the compound to the total amount of individual elements present in the compound multiplied by 100.
Formula: Percentage composition of a particular element E using the formula below:
% [tex]C_{E}=\frac{g_{E}*100}{g_{T}}[/tex]
gE = molar mass of the element
gT = Total molar mass of compound
Solution:
H2NO3 has 2 molecules of hydrogen, and one mole of H2NO3 is of 64.0258 grams. And one mole of a hydrogen atom is of 1.0079 grams. So, 2 hydrogen moles weighs 2.016 grams approximately.
Therefore, the percentage composition of hydrogen would be
=> 2.016*100/ 64.0258
= 3.148
Element Number Mass Percent Composition
H 2 1.0079 3.14841829387528
O 3 16.00 74.969777808321
N 1 14.01 21.8818038978037
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Total MW = 64.0258 Total percent composition = 100
Thus, The formula of a compound is H2NO3. the percent composition of hydrogen in this compound - 3.148 %.
Learn more about percentage composition:
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