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1. A mixture of ethanol (ethyl alcohol, C2H6O) and water contains 70.0% water by mass. Assuming...
1.
A mixture of ethanol (ethyl alcohol, C2H6O) and water contains
70.0% water by mass. Assuming volume additivity of the components,
estimate the specific gravity of the mixture at 20 oC. What volume
(in liters) of this mixture is required to provide 100 mol of
ethanol? Molecular weight and density of ethanol are 46.07 and
789g/L, respectively.
2. A gas stream contains 18.0 mole% hexane and the remainder
nitrogen. The stream flows to a condenser, where its temperature is
reduced and some of the hexane is liquefied. The hexane mole
fraction in the gas stream leaving the condenser is 0.0500. Liquid
hexane condensate is recovered at a rate of 1.5 L/min.
a) Draw the flow chart of the given process and label all the
know variables.
b) How many unknown variables you need to solve to specify the
molar flow rate of the gas stream leaving the condenser?
c) How many independent balance equations can you set
up?
d) Is there any other values you may want to find from other
resources? If so, please explain what it is and why?
Solutions
Amanda K answered 2 years agoRelated Solutions
Givent that the molecular mass of ethyl alcohol is 46 g/mol and that of water is...
Givent that the molecular mass of ethyl alcohol is 46 g/mol and
that of water is 18 g/mol, how many grams of wthyl alcohol must be
mixed with 100 mL of watre for the mole fraction of ethyl alcohol
to be 0.2?
The ethanol-water mixture is separated on a distillation column. Feed contains 20% ethanol and 1000 kmol...
The ethanol-water mixture is separated on a distillation column. Feed contains 20% ethanol
and 1000 kmol / hour speed is entering the system. The feed temperature is 30ºC and its enthalpy is 15kcal / kg.
Saturated feed steam enthalpy 485 kcal / kg and saturated feed liquid enthalpy
70kcal / kg. Distillate has at least 80% ethanol and 2% ethanol concentration of the sub-product
is required to be. The feedback / distillate ratio is 5/3. System pressure is 1 atm....
suppose you had a mixture of silver iodide, potassium nitrate, ethyl alcohol, and water. if you...
suppose you had a mixture of silver iodide, potassium
nitrate, ethyl alcohol, and water. if you wanted to recover each of
the compenents in pure form, which methods: decantation after
sedimentation, decantation after centrifugation, or filtration
would you use? Explain how you would carry out this separation and
recovery, indicating exactly what components you have at each step
of procedure.
Write the balanced chemical equation for ethanol C2H6O burning in air as a LEAN mixture if...
Write the balanced chemical equation for ethanol C2H6O burning
in air as a LEAN mixture if the reactant side of the reaction is
C2H6O + ?(O2 + 3.76N2)
===> ? CO2 + H2O + ? ?????
NOTE: A LEAN mixture means you have more air than you need to
burn all the fuel. You will have excess oxygen left over after the
reaction process.
An organic liquid is a mixture of methyl alcohol (CH3OH) and ethyl alcohol (C2H5OH). A 0.220-g...
An organic liquid is a mixture of methyl alcohol (CH3OH) and
ethyl alcohol (C2H5OH). A 0.220-g sample of the liquid is burned in
an excess of O2(g) and yields 0.380 g CO2(g) (carbon dioxide).
Set up two algebraic equations, one expressing the mass of
carbon dioxide produced in terms of each reagent and the other
expressing the mass of sample burned in terms of each reagent.
What is the mass of methyl alcohol (CH3OH) in the sample?
An organic liquid is a mixture of methyl alcohol (CH3OH) and ethyl alcohol (C2H5OH). A 0.220-gsample...
An organic liquid is a mixture of methyl alcohol (CH3OH) and
ethyl alcohol (C2H5OH). A 0.220-gsample of the liquid is burned in
an excess of O2(g) and yields 0.348 g CO2(g) (carbon dioxide).
Set up two algebraic equations, one expressing the mass of
carbon dioxide produced in terms of each reagent and the other
expressing the mass of sample burned in terms of each reagent.
What is the mass of methyl alcohol (CH3OH) in the sample?
An organic liquid is a mixture of methyl alcohol (CH3OH) and ethyl alcohol (C2H5OH). A 0.220-g...
An organic liquid is a mixture of methyl alcohol (CH3OH) and
ethyl alcohol (C2H5OH). A 0.220-g sample of the liquid is burned in
an excess of O2(g) and yields 0.376 g CO2(g) (carbon dioxide).
Set up two algebraic equations, one expressing the mass of
carbon dioxide produced in terms of each reagent and the other
expressing the mass of sample burned in terms of each reagent. What
is the mass of methyl alcohol (CH3OH) in the sample?
A solution is made by mixing 35.0 mL of ethanol, C2H6O, and 65.0 mL of water....
A solution is made by mixing 35.0 mL of ethanol, C2H6O, and 65.0
mL of water. Assuming ideal behavior, what is the vapor pressure of
the solution at 20 ∘C? The relevant values at 20 ∘C are included in
the table.
Liquid
Density (g/mL)
Vapor Pressure, P∘ (Torr)
ethanol
0.789
43.9
water
0.998
17.5
vapor pressure: Torr
A solution of ethanol CH3CH2OH and water that is 10.% ethanol by mass is boiling at...
A solution of ethanol CH3CH2OH and water that is 10.% ethanol by
mass is boiling at 98.7°C. The vapor is collected and cooled until
it condenses to form a new solution.
Calculate the percent by mass of ethanol in the new solution.
Here's some data you may need:
normal boiling point
density
vapor pressure at
98.7°C
ethanol
78.°C
0.79gmL
1563.torr
water
100.°C
1.00gmL
725.torr
Be sure your answer has the correct number of significant
digits.
Note for advanced students: you...
A piston-cylinder device contains a saturated mixture of steam and water having a total mass of...
A piston-cylinder device contains a saturated mixture of steam
and water having a total mass of 0.5 kg at a pressure of 160 kPa
and an initial volume of 100 liters. Heat is then added and the
fluid expands at constant pressure until it reaches a saturated
vapor state.
a) Draw a diagram representing the process showing the initial
and final states of the system.
b) Sketch this process on a P-v diagram with respect to the
saturation lines, critical...
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