Asked by Melinda
A sample of an unknown biochemical compound is found to have a percent composition of 55.03 percent carbon, 5.54 percent hydrogen, 32.10 percent nitrogen and the balance oxygen. What is the simplest formula for this compound ?
How do I do this?
How do I do this?
Answers
Answered by
DrBob222
Take a 100 g sample which gives you
55.03g C
5.54 g H (not H2)
32.10 g N (not N2)
7.33 g O (not O2).
Convert to mols.
55.03/atomic mass C = ?
5.54/atomic mass H = ?
32.10/atomic mass N = ?
7.33/atomic mass O = ?
No find the ratio of the atoms to each other with the smallest being one (1). The easy way to do this is to divide the smallest number by itself. That gives 1.00 for that number; to keep the ratios intact, divide all of the other numbers by the same small number. Post your work if you get stuck.
55.03g C
5.54 g H (not H2)
32.10 g N (not N2)
7.33 g O (not O2).
Convert to mols.
55.03/atomic mass C = ?
5.54/atomic mass H = ?
32.10/atomic mass N = ?
7.33/atomic mass O = ?
No find the ratio of the atoms to each other with the smallest being one (1). The easy way to do this is to divide the smallest number by itself. That gives 1.00 for that number; to keep the ratios intact, divide all of the other numbers by the same small number. Post your work if you get stuck.
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