How does one obtain an appropriate mixture of methanol and water for recrystallizing a solid sample?

Expert Solution

queen_honey_blossom answered 2 years ago

1. Obtain the equilibrium mole fractions (liquid and vapor) of a mixture of water, methanol and...

1. Obtain the equilibrium mole fractions (liquid and vapor) of a mixture of water, methanol and ethanol at 100 kPa and 70°C. You can assume the mixture is ideal. 2. Create one plot where the equilibrium mole fraction of benzene in the vapor phase is plotted against the equilibrium mole fraction of benzene in the liquid phase for three different pressures (0.2 bar, 0.6 bar and 1 bar). Comment on the effect of pressure on the relative volatility

Two streams containing a mixture of methanol and water are to be distilled in a distillation...

Two streams containing a mixture of methanol and water are to be distilled in a distillation column operating at 1 atm. The first stream enters the column closer to the top as a saturated liquid at 73 °C, with a flow rate of 55 kmol/h. The second stream enters the column at the temperature of 90°C closer to the bottom, with a flow rate of 40 kmol/h, at the concentration of 30 mol% methanol. The bottoms stream leaving the reboiler...

5. Would it be easier or harder to separate cyclohexane toluene mixture or water methanol mixture?...

5. Would it be easier or harder to separate cyclohexane toluene mixture or water methanol mixture? Explain your answer.

Two methanol–water mixtures are contained in separate flasks. The first mixture contains 40.0 wt% methanol, and...

Two methanol–water mixtures are contained in separate flasks. The first mixture contains 40.0 wt% methanol, and the second contains 70.0 wt% methanol. If 200 g of the first mixture is combined with 150 g of the second, what are the mass and composition of the product?

a 0.5153g solid sample containing only a mixture of LaCl3 & Ce(NO3)3 was dissolved in water....

a 0.5153g solid sample containing only a mixture of LaCl3 & Ce(NO3)3 was dissolved in water. Potassium iodate was then added to the obtained solution producing the precipitates La(IO3)3 molar mass 663.61 g/mol & Ce(IO3)3 molar mass 664.82 g/mol. the total mass of the precipitates was found to be equal to 1.1650g. Calc the % of LaCl3 and Ce(NO3)3 in the sample. i have to where there are two equations and two unknowns. I just don't know how to solve...

Assume Raoult's Law applies to a binary mixture of water and methanol at 70 C. a)...

Assume Raoult's Law applies to a binary mixture of water and methanol at 70 C. a) Which species should be considered species (a)? Why? b) Prepare a Pxy diagram for this mixture c) What is the composition of the vapor in equilibrium with liquid at xi for methanol of 0.3? d) What is the composition of the liquid in equilibrium with vapor at yi for water of 0.3? For parts (c) and (d), determine these composition values analytically. Then confirm...

If a mixture of water-ethanol containing a significant amount of methanol is being distilled (separation by...

If a mixture of water-ethanol containing a significant amount of methanol is being distilled (separation by VLE), can we state that the methanol is not a problem because it boils off first?

A mixture contains only and . A 4.51-g sample of the mixture is dissolved in water...

A mixture contains only and . A 4.51-g sample of the mixture is dissolved in water and an excess of is added, producing a precipitate of . The precipitate is filtered, dried, and weighed. The mass of the precipitate is 1.06 g. What is the mass percent of in the sample? %

a. A 1.500 g sample of a mixture of solid Na3PO4 - 12H2O and BaCl2 -...

a. A 1.500 g sample of a mixture of solid Na3PO4 - 12H2O and BaCl2 - 2H2O was dissolved in water and formed 0.520g of Ba3(PO4)2 precipitate. If reagent tests demonstrated that Na3PO4 - 12H2O was the limiting reactant in the precipitation reaction, calculate the mass percent of each reactant in the original sample. b. Clearly demonstrate which reactant salt would be limiting if the experiment was performed with equal masses of each salt. Assume 0.500g of each salt, for...

A plant must distill a mixture containing 70 mol% methanol and 30 mole% water. The overhead...

A plant must distill a mixture containing 70 mol% methanol and 30 mole% water. The overhead product is to contain 99 mol% methanol and the bottom product 1 mol% methanol. The feed is at its bubble point, a total condenser is used with a reflux ratio of 1.8 and with the reflux is at its bubble point. A kettle-type partial reboiler is used; the column is operated at 1 atm. Use the McCabe-Thiele method to determine the number of trays...

Question