I need help with these questions 1. The important thing to notice is that ammonium sulfate contains 2 nitrogen atoms, each belonging to one ammonium ion, #NH_4^(+)#. 9.34. with #A# as some arbitrary molecule or atom. The average atomic mass of carbon is 12.011. Percentage by mass of nitrogen = ( Mass of nitrogen atom / Mass of ammonia molecule ) x 100 = ( 14 / 17 ) x 100 = 82% 2 Answers. H=1. What is the percent by mass off nitrogen in ammonium sulfate? Thus, you would need to look up or recall the molar masses of these compounds. Express your answer to four significant figures and include the appropriate units. Percent composition of "N" is frac{28"g"}{80"g"}xx100% = 35%. Ammoniacal Nitrogen Fertilizer Vs. Urea Fertilizer. 1) Ammonium sulfate is added to some pesticides to increase their effectiveness. 132.14g in 1 mole ammonium sulfate. Which is the more economical source of nitrogen, a fertilizer containing 30.0% sodium nitrate by weight and costing $9.00 per 100 lb or one containing 20.0% ammonium sulfate by weight and costing $8.10 per 100 lb? The effectiveness of nitrogen fertilizers depends on both their ability to deliver nitrogen to plants and the amount of nitrogen they can deliver. This means that every 100g of ammonium sulfate contain 21.2 g of nitrogen. Uses. 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. Hint 1. So, the molar mass of ammonium sulfate is 132.14 g/mol and the molar mass of nitrogen is 14.007 g/mol. The answer is 3) 21%. What mass of ammonium chlorate is needed to decompose to give off 200 liters of oxygen? Ammonium sulfate has increasingly replaced ammonium nitrate as a synthetic nitrogen source for fertilizer since 2004. Molar mass of (NH4)2SO4 = 132.13952 g/mol. divide the two? The following mass percent problem below is broken into steps. 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. #O ~~ 15.999 " amu"#, #(NH_4)_2SO_4 = 2*(14.007+4*(1.0079))+32.065+4*15.999# [Relative molecular mass of ammonium nitrate is 80, H = 1, N= 14, 0= 16], Course Hero is not sponsored or endorsed by any college or university. 28g/132.14 x 100=21.21 % of N. 0 0. kentchemistry.com. The numbers 4,2, and 4 are subscripts. 132. Rank these fertilizers in terms of the mass percentage nitrogen they contain. 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% Express your answer numerically as a percentage. It has a role as a fertilizer. (if the question asked for Sulphur (S), it … A 30.5 Gram sample of glucose (C6H12O6) contains _____ mol of glucose. I need help with these questions 1. 2 8 g of nitrogen is present in 8 0 g of ammonium nitrate while same amount of nitrogen, i.e., 2 8 g is present in 1 3 2 g of ammonium sulfate. The formula weight of ammonium sulfate ((NH4)2S04)), rounded to the nearest integer, is _____ amu. this feels like a simple problem but i just don't know. Your car burns mostly octane, C 8 H 18, as a fuel. To 0.360 L of 0.140 M NH3 is added 0.150 L of 0.100 M MgOH2. Hydrogen in ammonium sulfate, (NH4)2SO4 , a substance used as a nitrogen fertilizer. 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. 29.0. #H ~~ 1.0079 " amu"# How many liters of oxygen is needed to burn a kilogram of octane? #(2 * 14.007color(red)(cancel(color(black)("g/mol"))))/(132.14color(red)(cancel(color(black)("g/mol")))) * 100 = color(green)("21.2%")#. Thus a mmonium nitrate have higher percentage of nitrogen by mass. Determine the mass percent of nitrogen in ammonium sulfate What is the mass percent of nitrogen in ammonium sulfate ()? Calculate the percentage by mass of nitrogen in PtCl2(NH3)2. 28 g in 2 mole N . Keter 4x3 Shed, The important thing to notice is that ammonium sulfate contains 2 nitrogen atoms, each belonging to one ammonium ion, #NH_4^(+)#. 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), Hint 3. 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. 4xx1"g"=4"g" The mass of "H" is 4"g". #S ~~ 32.065 " amu"# 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 . Answer Save. Convert grams Ammonium Sulfate to moles or moles Ammonium Sulfate to grams. Calculate the percentage of nitrogen and oxygen in ammonium nitrate. Click hereto get an answer to your question ️ Calculate which of the following calcium nitrate or ammonium sulfate has a higher \% of nitrogen. Percent composition of "N" is 35%. #-> 21.2%# since it is #(NH_4)_2# and thus there are two #N# atoms in there. This page was last edited on 16 June 2012, at 19:44. 2xx14"g"=28"g" The mass of "N" is 28"g". They use nitrogen to synthesize DNA, RNA, enzymes and other proteins necessary for growth and reproduction. This preview shows page 1 - 3 out of 7 pages. Chemistry. All plants need nitrogen to grow. Express your answer numerically as a percentage. 9 years ago. The source Nitrogen available to the Sulphate of Ammonia is 21%Nitrogen. 10488 views It is also commonly used as a fertilizer because it acts as a source for nitrogen. Ammonium Sulfate: Ammonium sulfate is a salt frequently used in agriculture as a fertilizer. Calculating percentage by mass. Convert grams (NH4)2SO4 to moles or moles (NH4)2SO4 to grams. Percent composition of "O" is 60%. Four common nitrogen-containing fertilizers are ammonia, ammonium nitrate, ammonium sulfate, and urea [(NH2) 2CO)]. 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. The main disadvantage to the use of ammonium sulfate is its low nitrogen content relative to ammonium nitrate, which elevates transportation costs. 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. (iii)€€€€ The percentage yield of ammonia is the percentage, by mass, of the nitrogen and hydrogen which has been converted to ammonia. What is the mass percentage of solute in this solution? 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. The relative atomic masses are: H 1; N 14. around the world. Calculate the percentage by mass go oxygen in Pb(NO3)2. Molecular weight calculation: (14.0067 + 1.00794*4)*2 + 32.065 + 15.9994*4 ›› Percent composition by element 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 (. chemistry. 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. Relevance. 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. How can I identify the ions present in (NH4)2SO4.FeSO4.6H2O qualitatively? A final year student must apply nitrogen at the rate of 120kgN/ha to maize seedlings in 3500m2 study field. 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 … A mole is just a way of saying a really big number which is actually $6.022 * 10^{23}$. #~~ 132.1382 " amu"#, #M_(N)/(M_((NH_4)_2SO_4)) = 14.007/(132.1382) ~~ 10.6%# of each #N# atom. formula mass of ammonium sulfate = (2 x 18) + 32 + 64 = 132. with two nitrogen atoms in the formula; % nitrogen by mass = 100 x 28/132 = 21.2% N with one sulfur atom in the formula, % sulfur by mass = 100 x 32/132 = 24.2% S (b) Calculate the percentage of sulfate ion in ammonium sulfate. Metropolitan State University Of Denver • CHEM 1100, Hillsborough Community College • CHEM 1025. #N ~~ 14.007 " amu"# Because the question asked for percentage mass of Nitrogen (N). Percent of nitrogen: 21.2% To get the percent composition of nitrogen is ammonium sulfate, (NH_4)_2SO_4, you need to know the molar mass … a) What is the formula for ammonium sulfate? (NH4)2SO4? >2xx14"g"+4xx1"g"+3xx16"g"=80"g" The mass of 1 mol of "NH"_4"NO"_3 is 80"g". Molar mass of (NH4)2SO4 = 132.13952 g/mol. 9 years ago. Calculate the mass, in tonnes, of ammonia which can be produced from 90 tonnes of hydrogen when the percentage yield is 50%. This compound is also known as Ammonium Sulfate. Atomic masses of elements can be found on the … How many moles of copper are needed to produce 1000 L of SO 2? copper + sulfuric acid copper II sulfate + water + sulfur dioxide . Favorite Answer. Molecular weight calculation: (14.0067 + 1.00794*4)*2 + 32.065 + 15.9994*4 ›› Percent composition by element chemistry. So, the molar mass of ammonium sulfate is 132.14 g/mol and the molar mass of nitrogen is 14.007 g/mol. The nitrogen in sodium nitrate and in ammonium sulfate is available to plants as fertilizer. Percent composition of "H" is 5%. In part, it makes an excellent fertilizer because of the nitrogen composition of the chemical. There is said to be about 600 grams of nitrogen in 1.00 pound of ammonium and 130 pounds of phosphorus available in 1.00 pounds of ammonium phosphate. Calculate the molar mass of ammonium sulfate, What is the molar mass of ammonium sulfate (. Calculate the percentage by mass of potassium in potassium sulfate K2 SO4 2. calculate the percentage by mass of nitrogen in ammonium … Hence the percentage of nitrogen in ammonium sulphate is higher than that in calcium nitrate. It would be (14x2) divided by 132 multiplied by 100%. jacob s. Lv 7. Lv 7. b) What is the mass of 1 mol of ammonium sulfate? 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