Secure bitpssession.mast Hydrocafbon Anaysis https.wsession ma Problem 3.58 Enha

Question

Secure bitpssession.mast Hydrocafbon Anaysis https.wsession ma Problem 3.58 Enhanced- with Feedback Part A Calculate the theoretical mass %ofCard Hin properoc acid. Express your answers, separated by commas, to three significant gures. Propenoic acid, CH40n,is a eactive organic iquid that is used in the manufacturing of plastics coatings, and adhesives. An unlabeled container is thought to contain this iqid. A 0.415-g sample is combusted to produce 0.155 g of water and 0.419 g of carbon dioxide You may want to reference (page) Sedin 3.5 whle completing this problem My Answers Giee Up Part B Calculate the expenmental mass % of C and H in the uknove, kud used ite opennent. Express your answers, separated by commas, to three significant fgures. My Answers Se Up DOLL 8 7 8 9 4 5 6

Explanation / Answer

PART A

Answer

C = 50.0

H = 5.59

Explanation

Molecular formula of C3H4O2

Molar mass of Propenoic acid = 72.06g/mol

Mass of Carbon in 1mole of Prpenoic acid = 12.01g/mol ×3mol = 36.03g

Mass of Hydrogen in 1mole of Propenoic acid = 1.007g/mol × 4mol = 4.028g

C = (36.03g/72.06g)×100 = 50.0

H = (4.028g/72.06g)×100 = 5.59%

PART B

Answer

C =27.5%

%H = 4.18

Explanation

CO2 to C conversion factor = 12.01g/44.01g =0.2729

mass of CO2 produced = 0.419g

mass of C = 0.2729 × 0.419g = 0.1143g

C = (0.1143g/0.415g)×100 = 27.5%

H2O to H conversion factor =2.014g/18.014g = 0.1118

Mass of H2O produced = 0.155g

Mass of H = 0.1118 × 0.155g =0.01733g

H = 0.01733g/0.415g = 4.18%

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