... What is the molar mass of C8H18 ? Furaneol has three elements in differing ratios, six carbon to eight hydrogen to three oxygen. asked Oct 11 in Other by manish56 (-13,778 points) 0 votes. Examples of molecular weight computations: CO2, SO2. You know that Carbon weighs approximately 12, Hydrogen weight aproximately 1, oxygen aproximately 16, and Nitrogen aproximately 14. The mass percent of FeO originally in the mixture was: A. A) MnO B) Mn2O3 C) Mn3O2 D) MnO2 E) none of the above. a. HCl. Calculate the percent Y by mass of the compound X Y.. H O (molar mass = 46.1 g/mol) is calculated as follows. Click here to see a video of the solution c. H_2SO_4. C 39.97% H 13.41% N 46.62% 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. (a) CH 4 (b) CHCl 3 (c) C 12 H 10 O 6 (d) CH 3 CH 2 CH 2 CH 2 CH 3. 3/2. 2.016/32.0 X 100 = 6.3%. Group of answer choices HCl H2O H2SO4 H3PO4 HF Which of the following compounds has the highest mass percent of "O"? 19. So the answer is (3). A compound has the following percentage composition by mass: Carbon - 54.55%, Hydrogen - 9.09% and Oxygen - 36.26%. I'm looking for a piece of glassware from France? 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). Feb 11 2012 12:33 PM. You can view video lessons to learn Mass Percent Formula. (1 u is equal to 1/12 the mass of one atom of carbon-12) e. HF. Solution for Which compound contains the highest percent by mass of hydrogen? which compound has the highest melting point? High temperature high pressure treatment of a heavy metal. 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. Find the Empirical and Molecular formula of the compound. i think CH4 . 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. 12.01 amu. CO. What is the mass percent N in C2H8N2? Get your answers by asking now. Plants use the nitrogen content in these compounds for protein synthesis. = 12.6% hydrogen by mass. 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. What are the formula and name of the compound? 71.4% C. 28.6% D. 49.3% E. none of these 43. An ionic compound has the following composition (by mass): Mg, 10.9%; Cl, 31.8%; O, 57.3%. 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. The atomic masses are 12.01 g/mol C, 1.00 g/mol H, 15.99 g/mol O. Here, number of carbon atom is same in each compound. Q. 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? because C=12,but H=1,so H4= 1*4=4 so carbon has the highest mass percentage. Since the sample contains C, H, and O, then the remaining. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. 2/3. Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. Percent Composition Calculator. 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. 20. H2O2. https://quizlet.com/55801470/chemistry-1122-midterm-ii-flash-cards Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply by 100. Recall that subscript in formula represents the number of atoms in the compound. 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% d. H_2S. Find its molecular formula. b. H_2O. 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%. 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? Which fertilizer has the highest nitrogen content? 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. [A] HCl [B] H 2 S [C] HF [D] H 2 SO 4 [E] H 2 O . 2. Now, we need to get the moles of each element in the compound. Calculate the empirical formula of the compound… 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. D is your answer Still have questions? al2(co3)3 c12h22o11 c8h18 h2o. Definitions of molecular mass, molecular weight, molar mass and molar weight. Solution for Which one of the following has the smallest mass percent of F in the compound? 100% - 40.9% - … you have the same 2.016 grams hydrogen here, but you have 32.0 grams oxygen in this molecule. Its vapour density is 44. ... which compound has the highest percent composition by mass of strontium. However, each molecule has only 1 carbon in which simplifies this a lot. Join Yahoo Answers and get 100 points today. 46.6 % N. A compound is 62.03 % C, 10.41 % H, and 27.55 % O by mass. Answer b. The number of moles in 12.0 g of C 2 6. so H2O has the higher percent by mass … 1 Approved Answer. 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. Answer c. 144.12 amu. Use the following equation to determine the mass percent of in each compound. Calculate the mass percent composition of nitrogen in each of the fertilizers named in this problem. Of the compounds listed in the question, water has the highest percent mass of hydrogen. What is the total mass (amu) of carbon in each of the following molecules? How to solve: Which compound contains the highest percent by mass of hydrogen? 12.01 amu. You can get the mass of the elements on the Periodic Table. A) SF₆ B) NaF C) XeF₂ D) KrF₄ Kshitij G answered on June 06, 2015. Answer a. I'm looking for a piece of glassware from France. What is the empirical formula of the compound? In the calculations below, I have rounded the masses to whole numbers. asked Dec 12, 2019 in Important Questions by gaurav96 Expert (9.5k points) The total mass is 128.126, with carbon making up 72.064 or 56.2 percent. It is simply calculated using a basic formula dividing the mass of the element (or solute) by the mass of the compound (or solution). Determine the mass percent of in. 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. (H = 1; C = 12; O = 16). 1. Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and (NH4)2SO4. Ascorbic acid (vitamin C) contains only C, H, and O. Y is known to be 60% X by mass. Disclaimer: I'm going to estimate all my masses. The percent composition can be found by dividing the mass of each component by total mass. Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). Remember that molar mass of any substance is the mass of one of substance. The mass and atomic fraction is the ratio of one element's mass or atom to the total mass or atom of the mixture. A compound has the following percent (by mass) composition: 87.2% Ti (thallium, atomic number = 81), 2.6% C and 10.2% oxygen. A compound with the following mass percent composition has a molar mass of 60.10 g/mol. ... Our tutors have indicated that to solve this problem you will need to apply the Mass Percent Formula concept. 91.9% B. Join Yahoo Answers and get 100 points today. Which compound has the highest percent composition by mass of strontium? Get your answers by asking now. B) Srl2 45) A) SrO C) SrCh D) SrS 46) Which compound has the smallest percent composition by mass ofchlorine? Thus SrO has the highest percent composition by mass of Sr New questions in Chemistry. Also, the numerators are the mass of hydrogen in the compound in grams, and the denominators are the molar masses of the … 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. Answer d. 60.05 amu. Which of the following has the highest mass percent of hydrogen? grendeldekt and 54 others learned from this answer The answer is (3). Methyl alcohol also called methanol which is CH3OH. Combustion of 1.000 g of Ascorbic acid produced 40.9% C and 4.5% H. What is the empirical formula for Ascorbic Acid? since it is just Mn and O we need the highest ration. Which compound/formula name combination is INCORRECT? For a question like this you can actually just 'eyeball' it. C3H6O. Recall that mass percent is given by: % mass = mass X Total mass x 100. 3. 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. Which compound has the highest mass percent C? Calculate the mass percent composition of carbon in each carbon-containing compound:c. C2H2. 1. Which compound contains the highest percent by mass of hydrogen 1 answer below » Which compound contains the highest percent by mass of hydrogen? 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