12.01 amu. A compound with the following mass percent composition has a molar mass of 60.10 g/mol. Its vapour density is 44. 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. Trump to return to White House early from Florida, Dancer, 'Electric Boogaloo' star Quiñones dead at 65, Pet food recalled after at least 28 dogs die: FDA, Report: Player from '85 Bears SB team arrested for murder, Dawn Wells, Mary Ann on 'Gilligan's Island,' dies at 82, NFL coach explains how decision to cut QB went down, Small Colorado town confronts coronavirus variant, Strong early turnout in Ga. runoffs puts GOP on edge, The year in Meghan Markle: A royal exit, activism and loss, Man in hospital with COVID-19 after GOP holiday party. Percent Composition Calculator. Group of answer choices HCl H2O H2SO4 H3PO4 HF Feb 11 2012 12:33 PM. Answer a. 1. (a) CH 4 (b) CHCl 3 (c) C 12 H 10 O 6 (d) CH 3 CH 2 CH 2 CH 2 CH 3. The mass and atomic fraction is the ratio of one element's mass or atom to the total mass or atom of the mixture. Y is known to be 60% X by mass. Of the compounds listed in the question, water has the highest percent mass of hydrogen. Since the sample contains C, H, and O, then the remaining. The mass percent of FeO originally in the mixture was: A. Get your answers by asking now. Click here to see a video of the solution Which compound has the highest percent composition by mass of strontium? b. H_2O. Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and (NH4)2SO4. = 12.6% hydrogen by mass. What is the total mass (amu) of carbon in each of the following molecules? 2. Calculate the percent Y by mass of the compound X Y.. H O (molar mass = 46.1 g/mol) is calculated as follows. 2/3. Also, the numerators are the mass of hydrogen in the compound in grams, and the denominators are the molar masses of the … It is simply calculated using a basic formula dividing the mass of the element (or solute) by the mass of the compound (or solution). Which fertilizer has the highest nitrogen content? 3. Q. In the calculations below, I have rounded the masses to whole numbers. So the answer is (3). Calculate the mass percent composition of nitrogen in each of the fertilizers named in this problem. Find the Empirical and Molecular formula of the compound. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). you have the same 2.016 grams hydrogen here, but you have 32.0 grams oxygen in this molecule. Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2. Another way to ask the question is: which weighs least: 2 O atoms, 4 H atoms, 1 N atom or 1 O atom? First we need to calculate the mass percent of Oxygen. The number of moles in 12.0 g of C 2 6. i think CH4 . a. HCl. Mass percent composition of C = mass contribution of C/molecular mass of K 3 Fe(CN) 6 x 100%; Mass percent composition of C = 72.06 g/mol/329.27 g/mol x 100%; Mass percent composition of C = 0.2188 x 100%; Mass percent composition of C = 21.88% A compound has the following percent (by mass) composition: 87.2% Ti (thallium, atomic number = 81), 2.6% C and 10.2% oxygen. al2(co3)3 c12h22o11 c8h18 h2o. An ionic compound has the following composition (by mass): Mg, 10.9%; Cl, 31.8%; O, 57.3%. Combustion of 1.000 g of Ascorbic acid produced 40.9% C and 4.5% H. What is the empirical formula for Ascorbic Acid? Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply by 100. The answer is (3) SrO.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. Vitamins C is essential fot prevention of scurvy combustion of 0.9g of vitamins C givez 0.2998g of Co2and 0.819g of H2OWhat is empirical formula of Vitamin C A compound of lead has the following percentage composition: Pb = 90.66%, O = 9.34%. so H2O has the higher percent by mass … Which of the following has the highest mass percent of hydrogen? High temperature high pressure treatment of a heavy metal. 19. A) MnO B) Mn2O3 C) Mn3O2 D) MnO2 E) none of the above. Which compound/formula name combination is INCORRECT? H2O2. The percent composition can be found by dividing the mass of each component by total mass. 46.6 % N. A compound is 62.03 % C, 10.41 % H, and 27.55 % O by mass. 1 Approved Answer. since it is just Mn and O we need the highest ration. The atomic masses are 12.01 g/mol C, 1.00 g/mol H, 15.99 g/mol O. D is your answer Answer b. I'm looking for a piece of glassware from France. The correct answer would be CH4 because 4H weighs less than 1N which weighs less than 1O which weighs less than 2O, and so CH4 has the highest mass percent of Carbon. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. Calculate the mass percent composition of carbon in each carbon-containing compound:c. C2H2. 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. Kshitij G answered on June 06, 2015. grendeldekt and 54 others learned from this answer The answer is (3). asked Dec 12, 2019 in Important Questions by gaurav96 Expert (9.5k points) asked Oct 11 in Other by manish56 (-13,778 points) 0 votes. Plants use the nitrogen content in these compounds for protein synthesis. Compound X 2 2 2 2. https://quizlet.com/55801470/chemistry-1122-midterm-ii-flash-cards Solution for Which compound contains the highest percent by mass of hydrogen? Solution for Which one of the following has the smallest mass percent of F in the compound? because C=12,but H=1,so H4= 1*4=4 so carbon has the highest mass percentage. Calculate the empirical formula of the compound… Still have questions? A) NaCl C KCI D) LiCI B) HCI 47) A 2,400-gram sample of an aqueous solution contains 0.012 gram of NH3. Which compound contains the highest percent by mass of hydrogen 1 answer below » Which compound contains the highest percent by mass of hydrogen? Disclaimer: I'm going to estimate all my masses. For a question like this you can actually just 'eyeball' it. 100% - 40.9% - … The correct answer would be CH4 because 4H weighs less than 1N which weighs less than 1O which weighs less than 2O, and so CH4 has the highest mass percent of Carbon. ... What is the molar mass of C8H18 ? Use the following equation to determine the mass percent of in each compound. A compound is decomposed in the laboratory and produces 6.00 g N and 0.43 g H. What is the empirical formula of the compound? Which compound has the highest mass percent C? The total mass is 128.126, with carbon making up 72.064 or 56.2 percent. Thus SrO has the highest percent composition by mass of Sr New questions in Chemistry. B) Srl2 45) A) SrO C) SrCh D) SrS 46) Which compound has the smallest percent composition by mass ofchlorine? Determine the mass percent of in. c. H_2SO_4. Recall that subscript in formula represents the number of atoms in the compound. Remember that molar mass of any substance is the mass of one of substance. Mass percent tells you the percentage of each element that makes up a chemical compound. 20. You take an aspirin tablet (a compound consisting solely of carbon, hydrogen, and oxygen) with a mass of 1.00 g, burn it in air, and collect 2.20 g of carbon dioxide and 0.400 g water. C 39.97% H 13.41% N 46.62% Recall that mass percent is given by: % mass = mass X Total mass x 100. 1. 2.016/32.0 X 100 = 6.3%. Which of the following compounds has the highest mass percent of "O"? which compound has the highest melting point? ... Our tutors have indicated that to solve this problem you will need to apply the Mass Percent Formula concept. Finding the mass percent requires the molar mass of the elements in the compound in grams/mole or the number of grams used to make a solution. Definitions of molecular mass, molecular weight, molar mass and molar weight. C3H6O. 91.9% B. The percent composition is used to describe the percentage of each element in a compound. How to solve: Which compound contains the highest percent by mass of hydrogen? I'm looking for a piece of glassware from France? Answer d. 60.05 amu. Join Yahoo Answers and get 100 points today. Trump to return to White House early from Florida, Dancer, 'Electric Boogaloo' star Quiñones dead at 65, Pet food recalled after at least 28 dogs die: FDA, Report: Player from '85 Bears SB team arrested for murder, Dawn Wells, Mary Ann on 'Gilligan's Island,' dies at 82, NFL coach explains how decision to cut QB went down, Small Colorado town confronts coronavirus variant, Strong early turnout in Ga. runoffs puts GOP on edge, The year in Meghan Markle: A royal exit, activism and loss, Man in hospital with COVID-19 after GOP holiday party. A compound has the following percentage composition by mass: Carbon - 54.55%, Hydrogen - 9.09% and Oxygen - 36.26%. e. HF. Now, we need to get the moles of each element in the compound. Ascorbic acid (vitamin C) contains only C, H, and O. [A] HCl [B] H 2 S [C] HF [D] H 2 SO 4 [E] H 2 O . However, each molecule has only 1 carbon in which simplifies this a lot. 3/2. Assuming we have 100 g of the compound, this means we have 39.99 g C, 6.73 g H, and 53.28 g O. You know that Carbon weighs approximately 12, Hydrogen weight aproximately 1, oxygen aproximately 16, and Nitrogen aproximately 14. Still have questions? (H = 1; C = 12; O = 16). Find its molecular formula. You can view video lessons to learn Mass Percent Formula. A) SF₆ B) NaF C) XeF₂ D) KrF₄ 71.4% C. 28.6% D. 49.3% E. none of these 43. What are the formula and name of the compound? CO. What is the mass percent N in C2H8N2? Get your answers by asking now. You can get the mass of the elements on the Periodic Table. Divide the mass of C (since there is one mole of C in one mole of each of these compounds) by the total mass of the compound (C + the other elements). ... which compound has the highest percent composition by mass of strontium. 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. What is the empirical formula of the compound? since it is just Mn and O we need the highest ration. Join Yahoo Answers and get 100 points today. Furaneol has three elements in differing ratios, six carbon to eight hydrogen to three oxygen. 12.01 amu. Correct answers: 1 question: What is the empirical formula of a compound if its percent by mass composition is 69.6% C, 8.34% H, and 22.1% O? Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. a) CaSO 4 is calcium sulfate b) NaCO 3 is sodium carbonate c) K 2 S is potassium sulfide d) Mg(OH) 2 is magnesium hydroxide e) BaCl 2 is barium chloride. Here, number of carbon atom is same in each compound. (1 u is equal to 1/12 the mass of one atom of carbon-12) d. H_2S. Answer c. 144.12 amu. Methyl alcohol also called methanol which is CH3OH. Or a component in a mixture of answer choices HCl H2O H2SO4 H3PO4 HF a compound or component. 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