# Chemistry

Rank the following fertilizers in decreasing order of mass percentage of nitrogen:

NH3
NH4NO3
(NH4)2HPO4
KNO3
(NH4)H2PO4
(NH4)2SO4

1. 👍 0
2. 👎 10
3. 👁 6,590
1. You need to work out the mass percentage of N in each. So in each case you need to the molar mass then calculate the % N content from

Total mass of N x100%/(molar mass)

1. 👍 0
2. 👎 0
2. i worked out the mass percentage of N in each and this is what i got
NH3=82.25%
NH4NO3=35%
(NH4)2HPO4=21.4%
KNO3=13.85%
(NH4)H2PO4=12.17%
(NH4)2SO4=11.85%

i put in order and still get it wrong -__-
Total mass of N x100%/(molar mass)

1. 👍 1
2. 👎 4
3. NH3
NH4NO3
(NH4)2HPO4
(NH4)2SO4
KNO3
(NH4)H2PO4

1. 👍 27
2. 👎 1
4. NH3
NH4NO3
(NH4)2HPO4
(NH4)2SO4
KNO3
(NH4)H2PO4

1. 👍 3
2. 👎 0

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