The level of column of barometer if the barometer is filled with water instead of mercury should be determined and explained. Concept Introduction: The manometer is a devise used measure the pressure of a gas . The pressure of gas is determined by the value of ‘ h ’ shown by the manometer. This ‘h’-value is added or subtracted with atmospheric pressure to determine the pressure of gas. The fluid used in a manometer can be varied. The pressure is directly proportional to the mass of fluid, because pressure is the force acting per area. Equation for density is, Density = Mass Volume

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5. A solution of sucrose is fermented in a vessel until the evolution of CO2 ceases. Then, the product solution is analyzed and found to contain, 45% ethanol; 5% acetic acid; and 15% glycerin by weight. If the original charge is 500 kg, evaluate; e. The ratio of sucrose to water in the original charge (wt/wt). f. Moles of CO2 evolved. g. Maximum possible amount of ethanol that could be formed. h. Conversion efficiency. i. Per cent excess of excess reactant. Reactions: Inversion reaction: C12H22O11 + H2O →2C6H12O6 Fermentation reaction: C6H12O6 →→2C2H5OH + 2CO2 Formation of acetic acid and glycerin: C6H12O6 + C2H5OH + H₂O→ CH3COOH + 2C3H8O3

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Chapter 8, Problem 21Q

Interpretation Introduction

Interpretation:

The level of column of barometer if the barometer is filled with water instead of mercury should be determined and explained.

Concept Introduction:

The manometer is a devise used measure the pressure of a gas. The pressure of gas is determined by the value of ‘h’ shown by the manometer. This ‘h’-value is added or subtracted with atmospheric pressure to determine the pressure of gas.

The fluid used in a manometer can be varied.

The pressure is directly proportional to the mass of fluid, because pressure is the force acting per area.

Equation for density is,

Density = MassVolume

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5. A solution of sucrose is fermented in a vessel until the evolution of CO2 ceases. Then, the product solution is analyzed and found to contain, 45% ethanol; 5% acetic acid; and 15% glycerin by weight. If the original charge is 500 kg, evaluate; e. The ratio of sucrose to water in the original charge (wt/wt). f. Moles of CO2 evolved. g. Maximum possible amount of ethanol that could be formed. h. Conversion efficiency. i. Per cent excess of excess reactant. Reactions: Inversion reaction: C12H22O11 + H2O →2C6H12O6 Fermentation reaction: C6H12O6 →→2C2H5OH + 2CO2 Formation of acetic acid and glycerin: C6H12O6 + C2H5OH + H₂O→ CH3COOH + 2C3H8O3

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