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A solution is created with 50.0g of KNO3 MM = 101.1g/mol in 150.0g of the water MM=18.0g/mol . The density of the mixture is 1.25g/cm3. Determine the following:
a.) Mass % of KNO3
b.) Mole fraction of water
c.) Molality of the solution
d.) Molarity of the solution
Calculate the minimum mass of hexane that could be left over by the chemical reaction. Be sure your answer has the correct number of significant digits.
For an ensemble consisting of a mole of particles having two energy levels separated by 1000. cm-1, at what temperature will the internal energy equal
Find out the normal boiling point in Celsius of pure acetic acid giving that the liquid has a vapor pressure of 13.9 torr at 25degree Celsius and its heat of vaporization (Δhvap) is 41.7kj/mol.
question technetium-99m gamma emitter t12 6.02 hr is widely used for diagnosis in medicine. a sample prepared in the
What is the magnetic field strength of the NMR system in Tesla? Show all equations and explain. c) Are the resonances of A and B well enough resolved to be able to measure the relative concentrations by NMR? Explain reasoning.
the following set of data was obtained by the method of initial rates for the reaction: 2 HgCl(aq) +C2O42-(aq)-> 2Cl-(aq) + 2 CO2(g) + Hg2Cl2(s) what is te rate law for the reaction
consider two jars. one jar contains 100 blue spheres and the other jar contains 25 each of red blue green and yellow
the compound acrylonitrile can be made in the following reaction 2c3h6g 2nh3g 3o2g ? 2c3h3ng 6h2og a 250.0 l
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the normal boiling point of ethanolc2h5oh is 78.5c. using the informationfrom thermodynamic data at 1 atm and 25c and
Calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400. g of water.
The following reaction is first order with respect to NO and first order with respect to O2, and the rate constant is 5.0 x 104 M-1s-1
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