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. What is the empirical formula of the compound? 2. Ascorbic acid (vitamin C) contains only C, H, and O. 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. The atomic masses are 12.01 g/mol C, 1.00 g/mol H, 15.99 g/mol O. Determine the mass percent of in. ... What is the molar mass of C8H18 ? You know that Carbon weighs approximately 12, Hydrogen weight aproximately 1, oxygen aproximately 16, and Nitrogen aproximately 14. which compound has the highest melting point? 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. since it is just Mn and O we need the highest ration. 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. 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%. c. H_2SO_4. Now, we need to get the moles of each element in the compound. because C=12,but H=1,so H4= 1*4=4 so carbon has the highest mass percentage. 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. The total mass is 128.126, with carbon making up 72.064 or 56.2 percent. High temperature high pressure treatment of a heavy metal. Solution for Which compound contains the highest percent by mass of hydrogen? C 39.97% H 13.41% N 46.62% What is the total mass (amu) of carbon in each of the following molecules? Disclaimer: I'm going to estimate all my masses. Find its molecular formula. Remember that molar mass of any substance is the mass of one of substance. 100% - 40.9% - … 12.01 amu. However, each molecule has only 1 carbon in which simplifies this a lot. a. HCl. asked Dec 12, 2019 in Important Questions by gaurav96 Expert (9.5k points) 1. asked Oct 11 in Other by manish56 (-13,778 points) 0 votes. Another way to ask the question is: which weighs least: 2 O atoms, 4 H atoms, 1 N atom or 1 O atom? Which of the following compounds has the highest mass percent of "O"? Also, the numerators are the mass of hydrogen in the compound in grams, and the denominators are the molar masses of the … since it is just Mn and O we need the highest ration. Methyl alcohol also called methanol which is CH3OH. 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% CO. What is the mass percent N in C2H8N2? Molecular mass (molecular weight) is the mass of one molecule of a substance and is expressed in the unified atomic mass units (u). So the answer is (3). 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. 3. 12.01 amu. 1. The number of moles in 12.0 g of C 2 6. 2.016/32.0 X 100 = 6.3%. Feb 11 2012 12:33 PM. The percent composition can be found by dividing the mass of each component by total mass. (H = 1; C = 12; O = 16). 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. 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 percent (by mass) composition: 87.2% Ti (thallium, atomic number = 81), 2.6% C and 10.2% oxygen. You can get the mass of the elements on the Periodic Table. A compound has the following percentage composition by mass: Carbon - 54.55%, Hydrogen - 9.09% and Oxygen - 36.26%. 3/2. Y is known to be 60% X by mass. The percent composition is used to describe the percentage of each element in a compound. Definitions of molecular mass, molecular weight, molar mass and molar weight. Q. Still have questions? Calculate the mass percent composition of nitrogen in each of the fertilizers named in this problem. Get your answers by asking now. Its vapour density is 44. Of the compounds listed in the question, water has the highest percent mass of hydrogen. Calculate the percent Y by mass of the compound X Y.. H O (molar mass = 46.1 g/mol) is calculated as follows. (1 u is equal to 1/12 the mass of one atom of carbon-12) Since the sample contains C, H, and O, then the remaining. Thus SrO has the highest percent composition by mass of Sr New questions in Chemistry. https://quizlet.com/55801470/chemistry-1122-midterm-ii-flash-cards 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. = 12.6% hydrogen by mass. Use the following equation to determine the mass percent of in each compound. A compound with the following mass percent composition has a molar mass of 60.10 g/mol. In the calculations below, I have rounded the masses to whole numbers. H2O2. Mass percent tells you the percentage of each element that makes up a chemical compound. How to solve: Which compound contains the highest percent by mass of hydrogen? Calculate the mass percent composition of carbon in each carbon-containing compound:c. C2H2. Answer c. 144.12 amu. A) MnO B) Mn2O3 C) Mn3O2 D) MnO2 E) none of the above. Which compound contains the highest percent by mass of hydrogen 1 answer below » Which compound contains the highest percent by mass of hydrogen? 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? Get your answers by asking now. I'm looking for a piece of glassware from France. Find the Empirical and Molecular formula of the compound. Answer b. B) Srl2 45) A) SrO C) SrCh D) SrS 46) Which compound has the smallest percent composition by mass ofchlorine? 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. Join Yahoo Answers and get 100 points today. Recall that mass percent is given by: % mass = mass X Total mass x 100. Still have questions? Which compound/formula name combination is INCORRECT? Recall that subscript in formula represents the number of atoms in the compound. Which compound has the highest percent composition by mass of strontium? 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. Click here to see a video of the solution ... Our tutors have indicated that to solve this problem you will need to apply the Mass Percent Formula concept. Answer a. ... which compound has the highest percent composition by mass of strontium. For a question like this you can actually just 'eyeball' it. 1 Approved Answer. 91.9% B. b. H_2O. Which fertilizer has the highest nitrogen content? Calculate the empirical formula of the compound… Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. 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 of the following has the highest mass percent of hydrogen? First we need to calculate the mass percent of Oxygen. [A] HCl [B] H 2 S [C] HF [D] H 2 SO 4 [E] H 2 O . Plants use the nitrogen content in these compounds for protein synthesis. Percent Composition Calculator. A) SF₆ B) NaF C) XeF₂ D) KrF₄ What are the formula and name of the compound? 71.4% C. 28.6% D. 49.3% E. none of these 43. you have the same 2.016 grams hydrogen here, but you have 32.0 grams oxygen in this molecule. It is simply calculated using a basic formula dividing the mass of the element (or solute) by the mass of the compound (or solution). (a) CH 4 (b) CHCl 3 (c) C 12 H 10 O 6 (d) CH 3 CH 2 CH 2 CH 2 CH 3. Join Yahoo Answers and get 100 points today. 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). Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. grendeldekt and 54 others learned from this answer The answer is (3). Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and (NH4)2SO4. 19. Group of answer choices HCl H2O H2SO4 H3PO4 HF Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply by 100. 20. The mass percent of FeO originally in the mixture was: A. al2(co3)3 c12h22o11 c8h18 h2o. 46.6 % N. A compound is 62.03 % C, 10.41 % H, and 27.55 % O by mass. e. HF. 2/3. I'm looking for a piece of glassware from France? Combustion of 1.000 g of Ascorbic acid produced 40.9% C and 4.5% H. What is the empirical formula for Ascorbic Acid? Examples of molecular weight computations: C[14]O[16]2, S[34]O[16]2. Which compound has the highest mass percent C? 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? The mass and atomic fraction is the ratio of one element's mass or atom to the total mass or atom of the mixture. You can view video lessons to learn Mass Percent Formula. 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. Furaneol has three elements in differing ratios, six carbon to eight hydrogen to three oxygen. Here, number of carbon atom is same in each compound. Answer d. 60.05 amu. d. H_2S. D is your answer Compound X 2 2 2 2. Kshitij G answered on June 06, 2015. C3H6O. i think CH4 . so H2O has the higher percent by mass … Solution for Which one of the following has the smallest mass percent of F in the compound? Three oxygen... which compound has the highest percent by mass of strontium each molecule has only carbon! 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