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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 recommended adult dose of elixophyllin a drug used to treat asthma is 6 mgkg of body mass. calculate the dose in
A piece of metal of mass 22 g at 92C is placed in a calorimeter containing 53.7 g of water at 21C. The final temperature of the mixture is 55.3C. What is the specific heat capacity of the metal?
The activation energy for the isomerization ol cyclopropane to propene is 274 kJ/mol. By what factor does the rate of this reaction increase as the temperature rises from 256 to 297 oC.
Write balanced net ionic equation for the neutralization of equal molar amounts of KOH and HClO_4
If the absolute temperature of a gas is doubled, what happens to the root-mean-square speed of the molecules?
C6H5NH3Cl is a cation chloride salt with acid. If 37.1 g of C6H5NH3Cl are dissolved in water to prepare a 150 mL solution, which is the initial molarity of the cation?
What volume (in mL) of a 1.420M NaOH solution is required to titrate 25.0mL of 4.50M HCl solution.
What is the structure of the alkane? The reaction of lithium di-sec-butylcuprate with isopenyl bromide yields?
Compound Y absorbs 2 equivalents of hydrogen when reduced over a palladium catalyst to give Z (C14H14) and reacts with ozone to give one product, benzoic acid (C7H6O2). Draw the structure of compound Z
How many electrons should we expect to see associated with the lowest energy peak in the photolectron spectrum of the element Gallium (Ga)?
What is the vapor pressure of SiCl4 (in mm Hg) at 23.5 C? The vapor pressure of SiCl4 is 100 mm Hg at 5.4 C and Delta H vap
Calculate the pH of the solution made by adding 0.50 mol of HOBr and 0.30 mol of KOBr to 1.00 L of water.
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