# which compound has the highest mass percent ss

Subtract to find the mass of oxygen in the compound. asked Sep 18, 2016 in Chemistry by Gatormerve. 2. 1 decade ago. a) CO. For the given compound both elements are present in 1:1 ratio so the element which has higher atomic weight has the higher mass % composition, So O has higher mass % composition for the given compound. a) CO. For the given compound both elements are present in 1:1 ratio so the element which has higher atomic weight has the higher mass % composition, So O has higher mass % composition for the given compound. In this example, I show how to find the mass percent of an element in a compound. 13.If the empirical formula for an organic compound is CH2O, then the molecular mass of the compound could be 1)CH2 2)C2H4 3)C3H6 4)C4H8 14.A compound has an empirical formula of CH2 and a molecular mass of 56. in a given compound, that element has the highest mass percentage in the compound. HCl . So 50% Water ----- 16/18. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. Use the following equation to determine the mass percent of in each compound. 1. Mass percent composition of a molecule shows the amount each element in a molecule contributes to the total molecular mass. ... 2017 in Class X Social Science by aditya23 (-2,145 points) 0 votes. Find the molar mass of all the elements in the compound in grams per mole. Login. Which of the following compounds has the highest mass percent of chlorine? 0 votes. Given : Mass of compound = 20.00 g. Mass of Zn = 16.07 g. Find: % Composition (% Zn and %O) List other known quantities. SOLUTION: By calculating for the mass percent of oxygen in each of the choices, we find that choice c. {eq}Mg(NO_3)_2 {/eq} has the highest mass percent of oxygen. A) MnO B) MnO2 C) Mn2O3 D) Mn3O2 E) none of the above. Here, number of carbon atom is same in each compound. D) MnO2. 3. (a) 1.0 g of BeCl2 (b) 1.0 g of MgCl2 (c) 1.0 g of CaS (d) 1.0 g of SrCO3 (e) 1.0 g of BaSO4. This compound has the highest ratio of oxygen atoms to chromium atoms and therefore has the greatest mass percent of oxygen. HF. Best answer. This compound has the highest ratio of oxygen atoms to chromium atoms and therefore has the greatest mass percent of oxygen. The number of Sr is the same so if the compound has the smallest gram formula mass, it has the highest percent composition by mass of strontium. g H / g compound x 100% is % mass. so let's assume we have 1 mole of each compound. What is the value of n necessary to find the molecular formula? save. Mass percent composition of a molecule shows the amount each element in a molecule contributes to the total molecular mass. Which of the following compounds has the highest mass percent of "O"? Nos partenaires et nous-mêmes stockerons et/ou utiliserons des informations concernant votre appareil, par l’intermédiaire de cookies et de technologies similaires, afin d’afficher des annonces et des contenus personnalisés, de mesurer les audiences et les contenus, d’obtenir des informations sur les audiences et à des fins de développement de produit. E) none of the above. Use uppercase for the first character in the element and lowercase for the second character. (1) SrC12 (2) SrI2 (3) SrO (4) SrS. The percent composition is used to describe the percentage of each element in a compound. Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply by 100. Remember that molar mass of any substance is the mass of one of substance. Degrees Brix (symbol °Bx) is the sugar content of an aqueous solution. To find the percent composition (by mass) for each element in a compound we need to determine the molar mass for each element and for the entire compound. [A] HCl [B] H 2 S [C] HF [D] H 2 SO 4 [E] H 2 O . grendeldekt and 54 others learned from this answer. general-chemistry; 0 Answers. 119. Which compound has the highest percent com­position by mass of strontium? Login. Which of the following has the highest mass percent of hydrogen? Find the molecular mass of the entire compound. 5 5. comments. Water is H2O which is 18 g/mol. This step-by-step tutorial will show the method to determine the mass percent composition of … 69.57%. You're looking at a percentage of oxygen by weight so you need (weight of oxygen)/(weight of compound) x 100% One oxygen is about 16 g/mol. 1 answer. +54. 61% Upvoted. But we have 3x more Carbon than oxygen. Relevance. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. I will use an example though, magnesium chloride. Mg is the lightest of all of the 2A elements you listed. Each element's contribution is expressed as a percentage of the whole. The mass and atomic fraction is the ratio of one element's mass or atom to the total mass or atom of the mixture. Which of the following compounds has the highest mass percent of "O"? MgS. H2O2. An empirical formula is a formula for a compound that gives the smallest whole number ratio of each type atom. = 12.6% hydrogen by mass. 32. lulu1991. Which of the following compounds has the highest mass percent of chlorine? In MgS, it is ~57% mass S. In BaS, the heaviest 2A element you listed, it is ~19% S. The way to determine this is by dividing the molar mass of sulfur by the molar mass of the compound and multiplying by 100. answered Sep 18, 2016 by NetworkHinch . ... that I might consider in its place. (a) BCl3 (b) AsCl3 (c) GaCl3 (d) AlCl3 (e) PCl3. Recall that subscript in formula represents the number of atoms in the compound. Of the compounds listed in the question, water has the highest percent mass of hydrogen. H2S . So methanol ----- 16/32. Which compound has the highest percent com­position by mass of strontium? D is your answer. #"% composition of element"=("MM of element")/("MM of compound")xx100# The molar mass of ammonium carbonate #("(NH"_4")"_2"CO"_3")# is #"96.086 g/mol"#. Divide each element's mass by the mass of the compound to find the percent by mass. 1 answer. In the case of carbon monoxide the ratio of the mass of carbon and oxygen present is 12:16 and in the case of carbon dioxide it is 12:32. Well, you didn't give us a compound. Relevance. Cancel units and calculate. A) MnO B) MnO2 C) Mn2O3 D) Mn3O2 E) none of the above. For MgS, it would be [32.0/(24.3+32.0)]*100=~56.8% mass sulfur. (a) \mathrm{BCl}_{3} (b) \mathrm{As} \mathrm{Cl}_{3} (c) \mathrm{GaCl}_{3} (d) \math… a) C6H3N3O7 b) CH4N2O c) LiNH2 d) Pb(N3)2 FREE Expert Solution Show answer. #"mass percent H"="mass H"/"mass compound"xx100#, 23492 views 0 votes. The number of Sr is the same so if the compound has the smallest gram formula mass, it has the highest percent composition by mass of strontium. Vous pouvez modifier vos choix à tout moment dans vos paramètres de vie privée. asked Sep 18, 2016 in Chemistry by Gatormerve. report. Calculate the percent by weight of sodium (Na) and chlorine (Cl) in sodium chloride (NaCl) Calculate the molecular mass (MM): MM = 22.99 + 35.45 = 58.44 ; Calculate the total mass of Na present: Examples: Fe, Au, Co, Br, C, O, N, F. Question: What is the mass percentage of oxygen in Fe2O3? B) Mn2O3. The molar mass of of Oxygen and carbon are more or less the same. 1. Determine the mass percent of in. 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. 88.89% Formic acid ----- 32/46. Yahoo fait partie de Verizon Media. Carbon has the highest mass percent. since it is just Mn and O we need the highest ration. What is its molecular formula? The number of moles in 12.0 g of C 2 6. First find the molar masses of all of the compounds: SrCl2 = 158.53g/mol SrI2 = 341.43g/mol SrO = 103.62g/mol SrS = 119.68g/mo Then find the molar mass of Sr in each of the compounds. Favorite Answer. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. So the answer is (3). Explanation: Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply … You will now have a number between 0 and 1. 118. ... 2017 in Class X Social Science by aditya23 (-2,145 points) 0 votes. Calculate the percent by weight of sodium (Na) and chlorine (Cl) in sodium chloride (NaCl) Calculate the molecular mass (MM): MM = 22.99 + 35.45 = 58.44 ; Calculate the total mass of Na present: Atom of the whole 2016 in Chemistry by Gatormerve ( 2 ) SrI2 ( 3 ) MgS 4 SrS. Following samples has the highest mass percentage is calculated as the mass of oxygen = 20.00 -! Subscripts of … this program determines the molecular formula equation to determine the mass and atomic is! Which of the compound découvrez comment nous utilisons vos informations dans notre Politique relative à la vie.. Step-By-Step tutorial will show the method to determine the mass of a component in a compound chlorine. ) LiNH2 D ) Mn3O2 E ) none of the elements in an compound which... C 2 6 aditya23 ( -2,145 points ) 0 votes is just Mn O... Determine the mass percent of an element in a molecule shows the amount element! 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Whole-Number ratio of one element 's contribution is expressed as a percentage of carbon by weight ( or volume?. Composition can be found by dividing the mass of the following equation to determine the mass of the compounds. Compound has the highest mass percentage is one way of representing the concentration of an aqueous Solution greatest of. And carbon are more or less the same calculating the percent which compound has the highest mass percent ss mass of a component by! … 1 [ 32.0/ ( 24.3+32.0 ) ] * 100=~56.8 % mass for a compound gives!