I would calculate the percentage of N in each of the compounds. The with the highest percentage will supply the most N per grams, per pound, per anything.
You can do it another way. Convert 1 g of the compound to ? grams of N. For example, #1 would be
1 g Fe(N3)2 x (6*atomic mass N)/molar mas Fe(N3)2 = g N
Which of the following nitrogen-containing compounds would supply the most nitrogen per gram of fertilizer?
a. iron azide, Fe(N3)2, MW = 140 g/mol
b. sodium azide, NaN3, MW = 65 g/mol
c. potassium nitrite, KNO2, MW = 85.1 g/mol
d. potassium azide, KN3, MW = 81.1 g/mol
e. There is not enough information to answer this problem
Could you please explain how to solve this?
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