Rank the following fertilizers in decreasing order of mass percentage of nitrogen:
NH3
Ca(NO3)2
CH4N2O (Urea)
NH4Cl
well,for example
NH3 = 14 + 3*1 = 17 grams/mole
14 of the 17 is N
100 *14/17 = 82.3% N
do the others the same way
To rank the fertilizers in decreasing order of mass percentage of nitrogen, we need to determine the amount of nitrogen in each fertilizer.
1. NH3 (Ammonia):
The molecular formula of Ammonia is NH3. In this compound, there is one nitrogen atom, which has a molar mass of 14.01 g/mol. To calculate the mass percentage of nitrogen in ammonia, we divide the molar mass of nitrogen by the molar mass of ammonia and multiply the result by 100.
Mass percentage of nitrogen in NH3 = (14.01 g/mol / 17.03 g/mol) x 100
2. Ca(NO3)2 (Calcium Nitrate):
The compound Calcium Nitrate has the formula Ca(NO3)2. In this compound, there are two nitrogen atoms. To determine the mass percentage of nitrogen in Calcium Nitrate, we first calculate the molar mass of nitrogen. Then we divide the molar mass of nitrogen by the molar mass of Calcium Nitrate and multiply the result by 100.
Mass percentage of nitrogen in Ca(NO3)2 = (2 x 14.01 g/mol / 164.09 g/mol) x 100
3. CH4N2O (Urea):
Urea has the chemical formula CH4N2O. In this compound, there is one nitrogen atom. To calculate the mass percentage of nitrogen in Urea, divide the molar mass of nitrogen by the molar mass of Urea and multiply the result by 100.
Mass percentage of nitrogen in CH4N2O = (14.01 g/mol / 60.06 g/mol) x 100
4. NH4Cl (Ammonium Chloride):
Ammonium Chloride has the chemical formula NH4Cl. In this compound, there is one nitrogen atom. To determine the mass percentage of nitrogen in Ammonium Chloride, divide the molar mass of nitrogen by the molar mass of Ammonium Chloride and multiply the result by 100.
Mass percentage of nitrogen in NH4Cl = (14.01 g/mol / 53.49 g/mol) x 100
After calculating the mass percentage of nitrogen in each fertilizer, you can rank them in decreasing order. The highest mass percentage of nitrogen will be ranked first, followed by the fertilizers with lower nitrogen content.