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A liquid mixture of methyl acetate and ethyl acetate at 50oC and 1 atm is in equilibrium with gas containing methyl acetate, ethyl acetate and 23 mole % nitrogen. What are the molar fractions of ethyl and methyl acetate in the liquid and gas phase?
(the freezing point constant is 1.86 C/m). On the basis of these data, one can conclude that the nonelectrolyte has a molecular weight of?
What is the mole fraction of HO2CCH2CHOHCO2H in this solution suppose you dissolve 2.56 grams of malic acid HO2CCH2CHOHCO2H in 50.0 grams of H 2 O.?
what volume of a 15.0% by mass NaOH solution, which has a density of 1.116 g/mL, should be used to make 5.3 L of an NaOH solution with a pH of 10.0
In which region of the carbon-13 NMR spectrum would you expect to find a resonance for the carbonyl group of an aliphatic ketone. The given chemical shift ranges are approximate. A. 50-80 ppm B. 180-210 ppm C. 100-150 ppm D. 65-85 ppm E. 9-10 ppm ..
Calculate (a) the mole fraction of the solute, (b) the number of moles of solute in the solution, and (c) the molecular mass of the solute.
solution is needed to just neutralize excess acid after 20 mL of 0.500 M HCL was added to 1.00 g of the antacid, how many moles of acid can the antacid counteract per gram?
Draw the structure of the product that is formed when diphenylmethanone undergoes a reaction with PhMgBr and then is treated with water.
Does caffeine or chlorophyll have a higher Rf value? Briefly explain why by discussing the intermolecular forces present in the molecules
Given the three formation equations and their enthalpy values, calculate the enthalpy of the given reaction.
What will the percentage of mercury (I) ions remaining in solution be?
moles of an ideal gas at 300K are expanded isothermally from an initial P of 4 atm to a final P of 1 atm. Calculate q, w, DeltaU, DeltaH for the process.
The vapor pressure of water at 20oC is 17.5 mmHg. What is the vapor pressure of water (in mmHg) over a solution prepared from 258 g sucrose (C12H22O11) and 350 g water?
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