Calculation of Molar Mass of Unknown LiquidUsing the Density Determined via DumasMethodWeight of flask filled with water (g)385.76 wt. of empty flask with foil and wire, (g)Weight of empty flask (g)Weight of water (g)Density of water (g/mL)Temperature of boiling water (K)Volume of Erlenmeyer flask (ml)123.98123.67(1)ר0.9977371.15(2)Atmospheric pressure, (mm Hg)758.35BenzeneTRIALS13Weight of flask with condensed vapor with foiland wire (g)Weight of condensed vapor (g)Molecular weight of benzene (g/mol)Mean Molecular Weight (g/mol)True Value (g/mol)124.65124.62124.5670.670.640.587(3)(4)(5)(6)78% error(7)ChloroformTRIALS123Weight of flask with condensed vapor with foiland wire (8)Weight of condensed vapor (g)Molecular weight of chloroform (g/mol)125.0032124.9954125.01211.02321.01541.0321(8)(9)(10)Mean Molecular Weight (g/mol)True Value (g/mol)(11)119.35% error(12)Unknown LiquidTRIALS12Weight of flask with condensed vapor with foiland wire (g)Weight of condensed vapor (g)Molecular weight of unknown liquid (g/mol)124.4865124.4789124.490.5070.49890.51(13)(14)(16)58(15)Mean Molecular Weight (g/mol)True Value (g/mol)% error(17)(18-20)What may this liquid be? (Clue: ketone)

We are given all the experimental data to find density of the unknown liquid via Dumas method. Note:…

wt. of empty flask with foil and wire, (g) Weight of empty flask (g) Weight of water (g) Density of water (g/mL) Temperature of boiling water (K) Volume of Erlenmeyer flask (mL) 123.98 123.67 (1) 0.99777 371.15 (2) Atmospheric pressure, (mm Hg) 758.35 Benzene TRIALS 1 3 Weight of flask with condensed vapor with foil and wire (g) Weight of condensed vapor (g) Molecular weight of benzene (g/mol) Mean Molecular Weight (g/mol) True Value (g/mol) % error 124.65 124.62 124.567 0.67 0.64 0.587 (3) (4) (5) (6) 78 (7) Chloroform TRIALS 1 2 3 Weight of flask with condensed vapor with foil and wire (g) Weight of condensed vapor (g) Molecular weight of chloroform (g/mol) Mean Molecular Weight (g/mol) True Value (g/mol) 125.0032 124.9954 125.0121 1.0232 1.0154 1.0321 (8) (9) (10) (11) 119.35 % error (12) Unknown Liquid TRIALS 1 2 3 Weight of flask with condensed vapor with foil and wire (g) Weight of condensed vapor (g) Molecular weight of unknown liquid (g/mol) 124.4865 124.4789 124.49 0.507 0.4989 0.51 (14) (16) 58 (17) (18-20) (13) (15) Mean Molecular Weight (g/mol) True Value (g/mol) % error What may this liquid be? (Clue: ketone)

wt. of empty flask with foil and wire, (g) Weight of empty flask (g) Weight of water (g) Density of water (g/mL) Temperature of boiling water (K) Volume of Erlenmeyer flask (mL) 123.98 123.67 (1) 0.99777 371.15 (2) Atmospheric pressure, (mm Hg) 758.35 Benzene TRIALS 1 3 Weight of flask with condensed vapor with foil and wire (g) Weight of condensed vapor (g) Molecular weight of benzene (g/mol) Mean Molecular Weight (g/mol) True Value (g/mol) % error 124.65 124.62 124.567 0.67 0.64 0.587 (3) (4) (5) (6) 78 (7) Chloroform TRIALS 1 2 3 Weight of flask with condensed vapor with foil and wire (g) Weight of condensed vapor (g) Molecular weight of chloroform (g/mol) Mean Molecular Weight (g/mol) True Value (g/mol) 125.0032 124.9954 125.0121 1.0232 1.0154 1.0321 (8) (9) (10) (11) 119.35 % error (12) Unknown Liquid TRIALS 1 2 3 Weight of flask with condensed vapor with foil and wire (g) Weight of condensed vapor (g) Molecular weight of unknown liquid (g/mol) 124.4865 124.4789 124.49 0.507 0.4989 0.51 (14) (16) 58 (17) (18-20) (13) (15) Mean Molecular Weight (g/mol) True Value (g/mol) % error What may this liquid be? (Clue: ketone)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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