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limeswan820Lv1

28 Sep 2019

A 0.755 moles of solution of glucose(C6H12O6) in water(H2O) has a density of 1.0624 g/ml at 20 Celsius. What is the mole fraction of glucose? What is the molality?SHOW calculations please!!!!

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A solution is prepared by dissolving 28.2gof glucose (C6H12O6)in 360gof water. The final volume of the solution is382mL. For this solution, calculate each of the following.

Molarity

Molality

percent by mass

mole fraction

mole percent

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The vapor pressure of water at 20 degrees Celsius is 17.54mmHg.

a)The vapor pressure of an aqueous glucose(C₆H₁₂O₆) solution is found to be17.10mmHg. How much glucose (in grams) was added to 250mL of waterat 20 degrees Celsius to achieve this vapor pressure lowering? Thedensity of water is 1.00g/mL. Glucose is a nonvolatile solute.

b)Next we take 400mL of water (density is 1.00g/mL), and mix itwith 50mL of propanol (C₃H₈O, density is0.803g/mL). Calculate the mole fraction of propanol.

c)Propanol is a nonvolatile compound. The total vapor pressureof the water/propanol mixture in b) is 17.41mmHg at 20 degreesCelsius. Calculate the vapor pressure of propanol at 20 degreesCelsius.

peachgerbil35

I need a detailed, step-by-step explanation. Thanks!!!

The vapor pressure of water at 20 degrees Celsius is 17.54mmHg.

b)Next we take 400mL of water (density is 1.00g/mL), and mix itwith 50mL of propanol (C₃H₈O, density is0.803g/mL). Calculate the mole fraction of propanol.

c)Propanol is a nonvolatile compound. The total vapor pressureof the water/propanol mixture in b) is 17.41mmHg at 20 degreesCelsius. Calculate the vapor pressure of propanol at 20 degreesCelsius.

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A 0.755 moles of solution of glucose(C6H12O6) in water(H2O) has a density of 1.0624 g/ml at 20 Celsius. What is the mole fraction of glucose? What is the molality?SHOW calculations please!!!!

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