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Chemistry
Level
2
The above table shows some nitrogen compounds and their respective molar masses. Which of the following is the correct order for the numbers of nitrogen atoms per gram of each compound?
A>B=D>C
A>B>D>C
A>B>C>D
A>D>B>C
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1 solution
The order is A>B>D>C . See the table below.
Compound A B C D Formula ( N H X 2 ) X 2 C O N H X 4 N O X 3 K N O X 3 ( N H X 4 ) X 2 S O X 4 Molar mass (g/mol), m 6 0 8 0 1 0 1 1 3 2 # N atoms, n 2 2 1 2 n / m 0 . 0 3 3 3 0 . 0 2 5 0 0 . 0 0 9 9 0 . 0 1 5 2