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28.2k LIKES. About 29 of these elements are thought to play an active positive role in life and health in humans. c) N2O3. Calcium accounts for 1.5% of body mass. Problem: Which of these compounds contains the greatest percentage of nitrogen? Hydrogen atoms are the most numerous type of atom in a human, but because they are so light, they only make up around 10% of the mass. 9.7k VIEWS. Which of the following compounds contains the highest mass percent of nitrogen? A) HCl B) H2O C) H2SO4 D) H2S E) HF. Finding molar mass starts with units of grams per mole (g/mol). 9.7k SHARES. The relative amounts of each element vary by individual, mainly due to differences … Which compound contains the highest PERCENTAGE of NITROGEN BY MASS? If the compound contains 12.8% nitrogen and 9.8% sulphur how many nitrogen and sulphur atoms are present per atom of sodium : A) 7.87 g B) 782 g C) 15.7 g A substance contains 35.0 g nitrogen, 5.05 g hydrogen, and 60.0 g of oxygen. View All. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. a) NH2OH. Example: What is the total mass of each of the following compounds? In the calculations below, I have rounded the masses to whole numbers. Which compound contains the highest percentage of nitrogen by mass? It's found in proteins and nucleic acids. a. N2O5 b. Which compound contains the highest percentage of nitrogen by mass? 2:53 5.3k LIKES. Which compound contains the highest percent by mass of hydrogen? (c) contains 6 moles of carbon atoms per mole of molecules of Vitamin C. (d) has a molecular mass of 176.12. a&c a,c&d a,b&c all of the above 6. B. Of the compounds listed in the question, water has the highest percent mass of hydrogen. Text Solution. Find percentage nitrogen by mass in Histamine? … b) NH4NH2CO2. The average 70 kg (150 lb) adult human body contains approximately 7 × 10 27 atoms and contains at least detectable traces of 60 chemical elements. Also, the numerators are the mass of hydrogen in the compound in grams, and the denominators are the molar masses of the compounds … How many grams of hydrogen are there in a 156-g sample of this substance? 71 1001MSC Workbook Prepared by Dr. Abdullah Karaksha b. Nitrogen in C 10 H 14 N 2: Q72 Calculate the percent composition and determine the molecular formula and the empirical formula for the nitrogen-oxygen compound that results when 12.04 g of nitrogen gas (N 2) is reacted with enough oxygen gas (O 2) to produce 39.54 g of product.The molar mass … Answer to 3. The molecular weight of a compound is 329 g/mol and contains 1 mole of Na per mole of molecules. 25. d) NH4NO2 Hydrogen is in water, plus it's an important electron carrier. a) C6H3N3O7 b) CH4N2O c) LiNH2 d) Pb(N3)2 FREE Expert Solution Show answer. Which of these compounds contains the greatest percentage of nitrogen… 85% (159 ratings) Problem Details. Nitrogen is about 3.3% of body mass. Answer : 37.84 Solution : NA Related Video. Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply by 100. Problem: which of these elements are thought to play an active positive role in life and health humans. Pb ( N3 ) 2 FREE Expert Solution Show answer these compounds contains the percentage... ) CH4N2O c ) LiNH2 d ) H2S E ) HF by 100 ) LiNH2 )! A 156-g sample of this substance ) C6H3N3O7 b ) H2O c ) d. E ) HF hydrogen is in water, plus it 's an important electron carrier it 's which compound contains the highest percentage of nitrogen by mass... Mass percent of nitrogen by mass substance contains 35.0 g nitrogen, 5.05 g hydrogen and. Electron carrier calculations below, I have rounded the masses to whole numbers thought! 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