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Two moles of sucrose are dissolved in eight moles of water. Assume that the solution follows Raoult's Law, but that the vapor pressure of sucrose is negligible, as it is for most solids. The distillation is carried out at 1 atm.
a) The vapor pressure of the solution at 100 degrees celsius is 0.8atm.
b) What temperature is observed at the still-head thermometer during this entire distillation?
Determine the correct formula for this compound; use the "rule of 13" and substitute in O's and N's to generate the possible formulas (ie do not simply use online software to do this problem).
Solid calcium oxide mixes with carbon dioxide gas. Diphosphorus pentoxide is added to water. Hydrogen sulfide gas is bubbled through a solution of silver nitrate.
Draw the skeletal structure for trans-1-ethyl-4-iodocyclohexane. Make sure the tapered end, i.e. the thin end, of the wedge bond is attached to the parent.
The standard free-energy difference between the two chair conformations of isopropylcyclohexane is 9.2 kJ mol-1 (2.2 kcal mol-1). What is the ratio of concentrations of the two conformations (axial and equatorial) at 25 °C
A certain reaction is spontaneous at 89C. If the enthalpy change for the reaction is 19 kJ/mol, what is the minimum value of delta S (in J/K x mol) for the reaction
Which of the following properties indicates the presence of strong intermolecular forces in a liquid
A toxic, binary, gaseous oxide is 63.65% nitrogen by mass. determine its empirical formula.
why do elements on the left hand side of the periodic table combinewith elements on the right hand side and what type
Estimate Keq for the following equilibria at 425 K. Note that H2O is present as a gas rather than as a liquid. R = 8.3149 J/(mol*K).
in new york you had a balloon inflated with helium he and you measured its temperature which was 89.6 degree f and its
a. in determining the percent acetic acid in vinegar the mass of each vinegar sample is measured rather than the
if 2.0 g of helium gas and 5.46 g of oxygen gas are mixed togeher, what is the mole fraction of helium in the solution?
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