https://quizlet.com/55801470/chemistry-1122-midterm-ii-flash-cards H2O2. Which compound contains the highest percent by mass of hydrogen 1 answer below » Which compound contains the highest percent by mass of hydrogen? The atomic masses are 12.01 g/mol C, 1.00 g/mol H, 15.99 g/mol O. Calculate the mass percent composition of nitrogen in each of the fertilizers named in this problem. 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. 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. D is your answer so H2O has the higher percent by mass … Remember that molar mass of any substance is the mass of one of substance. ... Our tutors have indicated that to solve this problem you will need to apply the Mass Percent Formula concept. Answer d. 60.05 amu. Mass percentage is one way of representing the concentration of an element in a compound or a component in a mixture. Find the Empirical and Molecular formula of the compound. Compound X 2 2 2 2. Recall that mass percent is given by: % mass = mass X Total mass x 100. Get your answers by asking now. You can view video lessons to learn Mass Percent Formula. Click here to see a video of the solution Which of the following has the highest mass percent of hydrogen? Kshitij G answered on June 06, 2015. because C=12,but H=1,so H4= 1*4=4 so carbon has the highest mass percentage. In the calculations below, I have rounded the masses to whole numbers. (a) CH 4 (b) CHCl 3 (c) C 12 H 10 O 6 (d) CH 3 CH 2 CH 2 CH 2 CH 3. Solution for Which compound contains the highest percent by mass of hydrogen? Which compound/formula name combination is INCORRECT? 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? Methyl alcohol also called methanol which is CH3OH. Percent Composition Calculator. What is the total mass (amu) of carbon in each of the following molecules? 3. What is the empirical formula of the compound? 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). Its vapour density is 44. Y is known to be 60% X by mass. Answer b. [A] HCl [B] H 2 S [C] HF [D] H 2 SO 4 [E] H 2 O . Disclaimer: I'm going to estimate all my masses. 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. Calculate the mass percent composition of carbon in each carbon-containing compound:c. C2H2. C3H6O. 46.6 % N. A compound is 62.03 % C, 10.41 % H, and 27.55 % O by mass. Thus SrO has the highest percent composition by mass of Sr New questions in Chemistry. 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. 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%. d. H_2S. since it is just Mn and O we need the highest ration. e. HF. ... which compound has the highest percent composition by mass of strontium. 1. 3/2. Divide the mass of hydrogen in each compound by the molar mass of the compound and multiply by 100. For a question like this you can actually just 'eyeball' it. 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? 2.016/32.0 X 100 = 6.3%. Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%. a. HCl. since it is just Mn and O we need the highest ration. 19. Group of answer choices HCl H2O H2SO4 H3PO4 HF I'm looking for a piece of glassware from France? A compound has the following percent (by mass) composition: 87.2% Ti (thallium, atomic number = 81), 2.6% C and 10.2% oxygen. 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. grendeldekt and 54 others learned from this answer The answer is (3). asked Oct 11 in Other by manish56 (-13,778 points) 0 votes. Most fertilizers consist of nitrogen-containing compounds such as NH3, CO(NH2)2, NH4NO3, and (NH4)2SO4. (H = 1; C = 12; O = 16). 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 percent composition is used to describe the percentage of each element in a compound. An ionic compound has the following composition (by mass): Mg, 10.9%; Cl, 31.8%; O, 57.3%. A) SF₆ B) NaF C) XeF₂ D) KrF₄ (1 u is equal to 1/12 the mass of one atom of carbon-12) 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. Find its molecular formula. The number of moles in 12.0 g of C 2 6. 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. Still have questions? 2/3. B) Srl2 45) A) SrO C) SrCh D) SrS 46) Which compound has the smallest percent composition by mass ofchlorine? c. H_2SO_4. C 39.97% H 13.41% N 46.62% CO. What is the mass percent N in C2H8N2? Answer c. 144.12 amu. Definitions of molecular mass, molecular weight, molar mass and molar weight. Still have questions? 12.01 amu. ... What is the molar mass of C8H18 ? 71.4% C. 28.6% D. 49.3% E. none of these 43. The mass percent of FeO originally in the mixture was: A. The percent composition can be found by dividing the mass of each component by total mass. High temperature high pressure treatment of a heavy metal. Plants use the nitrogen content in these compounds for protein synthesis. Which fertilizer has the highest nitrogen content? 100% - 40.9% - … You can get the mass of the elements on the Periodic Table. 91.9% B. 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. Examples of molecular weight computations: CO2, SO2. b. H_2O. Feb 11 2012 12:33 PM. = 12.6% hydrogen by mass. Which compound has the highest mass percent C? Calculate the percent Y by mass of the compound X Y.. H O (molar mass = 46.1 g/mol) is calculated as follows. However, each molecule has only 1 carbon in which simplifies this a lot. A compound has the following percentage composition by mass: Carbon - 54.55%, Hydrogen - 9.09% and Oxygen - 36.26%. Answer a. Combustion of 1.000 g of Ascorbic acid produced 40.9% C and 4.5% H. What is the empirical formula for Ascorbic Acid? 20. Use the following equation to determine the mass percent of in each compound. Mass percent tells you the percentage of each element that makes up a chemical compound. What are the formula and name of the compound? Also, the numerators are the mass of hydrogen in the compound in grams, and the denominators are the molar masses of the … Which compound has the highest percent composition by mass of strontium? 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. 1. I'm looking for a piece of glassware from France. Since the sample contains C, H, and O, then the remaining. Determine the mass percent of in. Join Yahoo Answers and get 100 points today. you have the same 2.016 grams hydrogen here, but you have 32.0 grams oxygen in this molecule. Calculate the empirical formula of the compound… Which of the following compounds has the highest mass percent of "O"? 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. 12.01 amu. Now, we need to get the moles of each element in the compound. 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) NaCl C KCI D) LiCI B) HCI 47) A 2,400-gram sample of an aqueous solution contains 0.012 gram of NH3. Solution for Which one of the following has the smallest mass percent of F in the compound? al2(co3)3 c12h22o11 c8h18 h2o. So the answer is (3). which compound has the highest melting point? 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. Another way to ask the question is: which weighs least: 2 O atoms, 4 H atoms, 1 N atom or 1 O atom? asked Dec 12, 2019 in Important Questions by gaurav96 Expert (9.5k points) Get your answers by asking now. Q. Furaneol has three elements in differing ratios, six carbon to eight hydrogen to three oxygen. i think CH4 . How to solve: Which compound contains the highest percent by mass of hydrogen? You know that Carbon weighs approximately 12, Hydrogen weight aproximately 1, oxygen aproximately 16, and Nitrogen aproximately 14. A) MnO B) Mn2O3 C) Mn3O2 D) MnO2 E) none of the above. The total mass is 128.126, with carbon making up 72.064 or 56.2 percent. Ascorbic acid (vitamin C) contains only C, H, and O. It is simply calculated using a basic formula dividing the mass of the element (or solute) by the mass of the compound (or solution). First we need to calculate the mass percent of Oxygen. Recall that subscript in formula represents the number of atoms in 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). 1 Approved Answer. Here, number of carbon atom is same in each compound. Of the compounds listed in the question, water has the highest percent mass of hydrogen. A compound with the following mass percent composition has a molar mass of 60.10 g/mol. 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% Join Yahoo Answers and get 100 points today. 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