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A solution contains 0.400 mol of calcium nitrate as well as 6.500 mol of water. Compute the vapor pressure of the solution at 55 degrees Celsius. The vapor pressure of pure water at 55 degrees Celsius is 118.1torr. Presume that the solute completely dissociates.
Draw the products(if any) expected from the treatment of each of the following compounds with ozone followed by aqueous hydrogen peroxide
A 12.0 gas cylinder has been filled with 5.40 moles of gas. You measure the pressure to be 5.00 atm. What is the temperature inside the tank? Express your answer numerically in degrees Celsius.
The accepted value (mu) for a standard sample of chloride was 34.63 percent chloride. Triplicate analysis of this material by a new procedure yielded a mean value of 34.71 and an estimated standard deviation of 0.04
What minimum mass of succimer (C4H6O4S2) (in mg) is needed to bind all of the lead in a patient's bloodstream? Assume that patient blood lead levels are 25 micrograms/deciliter.
Calculate the molarity of 736 mL of a solution that contains 153 g of sucrose C12H22O11.
There are three resonance contributors. Draw all resonance structures for H2CNO2 and show all nonbonding electrons and formal charges
For the competitive reaction between an equimolar propanal/acetone mixture and cyanide, show that PA/PK = kA/kk
When a nitrite containing sample with a mass of 3.000 g was analyzed, 16.65 mL of 0.1500 M Na2S2O3 solution was required to completely titrate the sample. What is the mass percent of NO2- ion in the sample
A method of preparing a very pure alkane is to react the corresponding alkyl magnesium halid (grignard reagent) with water and collect the alkane product.
1.464 g of an unknown hydrocarbon (112.6 g/mol) burns in bomb calorimeter in excess oxygen. The heat capacity of the calorimeter,Cv, = 5.234 kJ/ºC and ?T =5.744 ºC. Find ?E for this hydrocarbon in kJ/mol.
Calculate the molarity of the solution when 5.396 g of sodium chloride are added to water in order to make a 2.00 L solution. The molarity of NaCl in the solution
Suppose you are given 150mg of an unknown mixture that contains 3 compounds and you're told to separate the compounds using column chromatography using alumina as a stationary phase. How would you decide what solvent or solvent system to use
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