A mixture with a total mass of 1.67 g contains sucrose and ethyl alcohol. This mixture is reacted with acidic aqueous potassium dichromate. 2.36 L CO₂ (g) coming from the reaction accumulates on water at 35 ˚C and has a pressure of 0.48 atm. If the vapor pressure of the water at this temperature is 42.20 mmHg, what is the percentage by mass of C₆H₁₂O₆ in the mixture? (C₆H₁₂O₆, 342.30 g mol⁻¹ and C₂H₆O, 46.07 g mol⁻¹) C₆H₁₂O₆ (aq) + Cr₂O₇²⁻ (aq) → CO₂ (g) + Cr⁺ᶾ (aq) (unbalanced) C₂H₆O (aq) + Cr₂O₇²⁻ (aq) → CO₂ (g) + Cr⁺ᶾ (aq) (balanced)
A mixture with a total mass of 1.67 g contains sucrose and ethyl alcohol. This mixture is reacted with acidic aqueous potassium dichromate. 2.36 L CO₂ (g) coming from the reaction accumulates on water at 35 ˚C and has a pressure of 0.48 atm. If the vapor pressure of the water at this temperature is 42.20 mmHg, what is the percentage by mass of C₆H₁₂O₆ in the mixture? (C₆H₁₂O₆, 342.30 g mol⁻¹ and C₂H₆O, 46.07 g mol⁻¹) C₆H₁₂O₆ (aq) + Cr₂O₇²⁻ (aq) → CO₂ (g) + Cr⁺ᶾ (aq) (unbalanced) C₂H₆O (aq) + Cr₂O₇²⁻ (aq) → CO₂ (g) + Cr⁺ᶾ (aq) (balanced)
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter11: Solutions
Section: Chapter Questions
Problem 18P
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A mixture with a total mass of 1.67 g contains sucrose and ethyl alcohol. This mixture is reacted with acidic aqueous potassium dichromate. 2.36 L CO₂ (g) coming from the reaction accumulates on water at 35 ˚C and has a pressure of 0.48 atm. If the vapor pressure of the water at this temperature is 42.20 mmHg, what is the percentage by mass of C₆H₁₂O₆ in the mixture?
(C₆H₁₂O₆, 342.30 g mol⁻¹ and C₂H₆O, 46.07 g mol⁻¹)
C₆H₁₂O₆ (aq) + Cr₂O₇²⁻ (aq) → CO₂ (g) + Cr⁺ᶾ (aq) (unbalanced)
C₂H₆O (aq) + Cr₂O₇²⁻ (aq) → CO₂ (g) + Cr⁺ᶾ (aq) (balanced)
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