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a) Text 8.36
Assume sucrose and water form an ideal solution. What is the equilibrium vapor pressure of a solution of 2.0 grams of sucrose (molecular weight 342g mol-1) at T = 293 K if the vapor pressure of pure water at 293 K is 17.54 Torr. What is the osmotic pressure of the sucrose solution versus pure water? Assume 100.0 g of water.
b) What is the osmotic pressure of a soda which has about 40 grams of sucrose in 500 mL of water?
The radius of a potassium atom is 235 pm. Determine the density of potassium in g/cm3.
als hclaq alcl3aq h2gwhat mass of hydrogen can be produced from 2.90 g of aluminum and 14.0 g of hcl in the above
when the zinc coating on an iron can is scratched, rust does not form. use the activity series to explain why this happens.
Show by equations analogous to those in problem 1 how branching may arise in the free-radical polymerization of isoprene (CH2-C(CH3) CH-CH2) initiated by di-t-butyl peroxide even in the absence of chain transfer. How do you think the presence of d..
The reaction of CrCl3 with liquid NH3 to give yellow [Cr(NH3)6]Cl3 often has a low yield, since the reaction tends to stop with the production of pink [Cr(NH3)5Cl]Cl2
If a 180mg piece of gold (density =19.32g/cm^3 ) is hammered into a sheet measuring 2.1ft x 1.0ft , what is the average thickness of the sheet in meters?
a sample of gas occupies a volume of 400 ml at 0.740 atm and 70 oc. calculate the pressure of the gas if its volume is
A 25.0 mL sample of .200 M HF is titrated with .200 M NaOH. What is the pH at the equivalence point?
A 5.325g sample of methyl benzoate, a compound found in perfumes, was found to contain 3.758g of carbon, 0.316g of hydrogen, and 1.1251g of oxygen.
a 10.000-g sample of toothpaste containing stannous flouride gives a 0.145-g precipitate of stannous phosphate. What is the percentage of SnF2 in the toothpaste sample?
A sample of H2O with a mass of 46.0 grams has a temperature of -58.0C. How many joules of energy are necessary to melt 46.0 grams of ice.
The complete combustion of acetylene, C2H2(g), produces 1300. kJ of energy per mole of acetylene consumed. How many grams of acetylene must be burned
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