Calculate the molality of urea in the solution
At 27 degrees celsius, the vapor pressure of pure water is 23.76 mmHg and that of an aqueous solution of urea is 22.99 mmHg. Calculate the molality of urea in the solution.
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what is/are the organic product(s) in the reaction below. draw a stepwise, detailed mechanism for the following reaction. a.) CH3C=C-CH3 + Br2
Calculate the mass (in grams) of sucrose in 1.0 kg of a 0.25% sucrose solution.
If the amount of Hg in an industrial-waste pond is 0.39 micrograms (ug)/mL, how much Hg is present in (kg) if the pond has a surface area (m^2) and an average depth of 35 ft?
In a fictitious lab experiment a class studied two acid base reactions and recorded the temperature change. class averages were reported 1) 30 ml of 3 molar hcl with 30 ml of 1.5 naoh change in temp was 12.2 +or - 1.3
Write three orbital designations that would be incorrect and explain why each is incorrect. For example, 1p would be an incorrect orbital designation because there is no p sub-shell in the first orbit.
Molecular chlorine and molecular fluorine combine to form a gaseous product.Under the same conditions of temperature and pressure it is found that one volume of Cl2 reacts with three volumes of F2 to yield two volumes of the product. What is the fo
A reaction mixture initially contains 0.56 atm CO2 and 0.32 atm CO. Determine the equilibrium pressure of each gas if Kp for the reaction at this temperature is 2.25.
the water dissociation reaction H2O (l) --> H+(aq) + OH-(aq). What are the standard states for the three species in the two cases? Density of water is 997 kg/m^3.
The same mass of solute is dissolved in 9.82 g of t-butanol instead of cyclohexane. What is the expected freezing pt. change of this solution?
Suppose that 194.2 J of heat energy is required to completely vaporize 3.3 g of a pure liquid. If the molar mass of the liquid is 91.92 g/mol, what is the molar enthalpy of vaporization of the liquid?
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