The percentage by mass is determined by 1. multiplying each elemental mass by the number of atoms in a molecule, 2. adding the result, and then dividing the individual masses by the total mass. In part, it makes an excellent fertilizer because of the nitrogen composition of the chemical. chemistry. #-> 21.2%# since it is #(NH_4)_2# and thus there are two #N# atoms in there. Express your answer to four significant figures and include the appropriate units. Four common nitrogen-containing fertilizers are ammonia, ammonium nitrate, ammonium sulfate, and urea [(NH2) 2CO)]. To get the percent composition of nitrogen is ammonium sulfate, #(NH_4)_2SO_4#, you need to know the molar mass of the compound and that of elemental nitrogen. The formula weight of ammonium sulfate ((NH4)2S04)), rounded to the nearest integer, is _____ amu. copper + sulfuric acid copper II sulfate + water + sulfur dioxide . Calculate the percentage of nitrogen and oxygen in ammonium nitrate. (NH4)2SO4? In this experiment you will conduct a gravimetric analysis of the sulfur (S) mass percentage in an unknown fertilizer. The answer is 3) 21%. Rank these fertilizers in terms of the mass percentage nitrogen they contain. Determine the mass of nitrogen in ammonium sulfate, Determine the mass percent of nitrogen in ammonium hydrogen sulfate, What is the mass percent of nitrogen in ammonium hydrogen sulfate (, Calculate the molar mass of ammonium hydrogen sulfate, What is the molar mass of ammonium hydrogen sulfate (, Determine the mass of nitrogen in ammonium hydrogen sulfate. #H ~~ 1.0079 " amu"# Ammonium sulfate is an inorganic sulfate salt obtained by reaction of sulfuric acid with two equivalents of ammonia.A high-melting (decomposes above 280℃) white solid which is very soluble in water (70.6 g/100 g water at 0℃; 103.8 g/100 g water at 100℃), it is widely used as a fertilizer for alkaline soils. Convert grams Ammonium Sulfate to moles or moles Ammonium Sulfate to grams. Ammoniacal Nitrogen Fertilizer Vs. Urea Fertilizer. They use nitrogen to synthesize DNA, RNA, enzymes and other proteins necessary for growth and reproduction. 1) Ammonium sulfate is added to some pesticides to increase their effectiveness. Molar mass (NH4)2SO4 = 132.14 g/mol 1mol (NH4)2SO4 contains 2 mol N Molar mass N = 14g/mol , Mass of 2 mol N = 28g %N in (NH4)2SO4 = 28g/ 132g * 100 = 21.2% 2xx14"g"=28"g" The mass of "N" is 28"g". So, the molar mass of ammonium sulfate is 132.14 g/mol and the molar mass of nitrogen is 14.007 g/mol. Calculate the mass, in tonnes, of ammonia which can be produced from 90 tonnes of hydrogen when the percentage yield is 50%. Percent composition of "N" is frac{28"g"}{80"g"}xx100% = 35%. Favorite Answer. Hence the percentage of nitrogen in ammonium sulphate is higher than that in calcium nitrate. The primary use of ammonium sulfate is as a fertilizer for alkaline soils.In the soil the ammonium ion is released and forms a small amount of acid, lowering the pH balance of the soil, while contributing essential nitrogen for plant growth. 29.0. A final year student must apply nitrogen at the rate of 120kgN/ha to maize seedlings in 3500m2 study field. Molecular weight calculation: (14.0067 + 1.00794*4)*2 + 32.065 + 15.9994*4 ›› Percent composition by element 9.34. Convert grams (NH4)2SO4 to moles or moles (NH4)2SO4 to grams. Hydrogen in ammonium sulfate, (NH4)2SO4 , a substance used as a nitrogen fertilizer. chemistry. Calculate the molar mass of ammonium sulfate The molar mass of a compound can be determined by summing the atomic masses of each element in the compound. Calculate the percentage by mass of potassium in potassium sulfate K2 SO4 2. calculate the percentage by mass of nitrogen in ammonium … #(2 * 14.007color(red)(cancel(color(black)("g/mol"))))/(132.14color(red)(cancel(color(black)("g/mol")))) * 100 = color(green)("21.2%")#. Hint 3. a) What is the formula for ammonium sulfate? Molecular weight calculation: (14.0067 + 1.00794*4)*2 + 32.065 + 15.9994*4 ›› Percent composition by element The numbers 4,2, and 4 are subscripts. The main disadvantage to the use of ammonium sulfate is its low nitrogen content relative to ammonium nitrate, which elevates transportation costs. jacob s. Lv 7. All plants need nitrogen to grow. It has a role as a fertilizer. Uses. Molar mass of (NH4)2SO4 = 132.13952 g/mol. Nitrogen-sulfur materials are often used as the source of both nitrogen and sulfur in the fertilizer, including ammonium sulfate (21-0-0 +24S), ammonium nitrate-sulfate (30-0-0 +15S), Molar mass of (NH4)2SO4 = 132.13952 g/mol. Percent of nitrogen: 21.2% Explanation: To get the percent composition of nitrogen is ammonium sulfate, $$(NH_4)_2SO_4$$, you need to know the molar mass of the compound and that of … 132.14g in 1 mole ammonium sulfate. with #A# as some arbitrary molecule or atom. Hint 3 Determine the mass percent of nitrogen in ammonium sulfate What is the, 1 out of 1 people found this document helpful, Determine the mass percent of nitrogen in ammonium sulfate, What is the mass percent of nitrogen in ammonium sulfate (. Express your answer numerically as a percentage. The following mass percent problem below is broken into steps. Calculate the percentage by mass go oxygen in Pb(NO3)2. Calculating the mass of 1 molecule of ammonia: Mass = ( Number of hydrogen atoms x Mass of hydrogen atom) + ( Number of nitrogen atoms x Mass of nitrogen atoms) Mass = ( 3 x 1 ) + ( 1 x 14) = 17. Ammonium Sulfate: Ammonium sulfate is a salt frequently used in agriculture as a fertilizer. An explanation for beginners, a refresher for the rest of us: To make sure anyone reading knows what molar mass means: The mass of one mole of something, in our case the mass of a mole of nitrogen, or the mass of a mole of ammonium sulfate, etc. To 0.360 L of 0.140 M NH3 is added 0.150 L of 0.100 M MgOH2. divide the two? Ammonium sulfate has increasingly replaced ammonium nitrate as a synthetic nitrogen source for fertilizer since 2004. H=1. You can write the percent composition of nitrogen in ammonium sulfate by dividing the molar mass of the two nitrogen atoms by the molar mass of the compound, and multiplying the result by 100. Percentage by mass of nitrogen = ( Mass of nitrogen atom / Mass of ammonia molecule ) x 100 = ( 14 / 17 ) x 100 = 82% What is the percent by mass off nitrogen in ammonium sulfate? So, the molar mass of ammonium sulfate is 132.14 g/mol and the molar mass of nitrogen is 14.007 g/mol. I need help with these questions 1. What mass of ammonium chlorate is needed to decompose to give off 200 liters of oxygen? This compound is also known as Ammonium Sulfate. The important thing to notice is that ammonium sulfate contains 2 nitrogen atoms, each belonging to one ammonium ion, #NH_4^(+)#. Calculate the percentage by mass of potassium in potassium sulfate K2 SO4 2. calculate the percentage by mass of nitrogen in ammonium nitrate Nh4 No3 . How many moles of copper are needed to produce 1000 L of SO 2? How many liters of oxygen is needed to burn a kilogram of octane? 28 g in 2 mole N . 28g/132.14 x 100=21.21 % of N. 0 0. kentchemistry.com. #N ~~ 14.007 " amu"# Percent composition of "N" is 35%. Percent composition of "H" is 5%. Atomic masses of elements can be found on the … A mole is just a way of saying a really big number which is actually $6.022 * 10^{23}$. Calculating percentage by mass. 9 years ago. 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