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Calculate the percent by mass of the solute CH2Cl2 in a solution made by mixing 453 mL of methylene chloride to 2.36 L of the solvent acetone
22.3 g of a substance X dissolves in enough water to make 0.507 L of a 0.779 M solution. Calculate the molar mass of X in g/mol.
Make sure to include all the amounts of materials and the equipment you would use. You should plan to use this procedure as your guide for perparing your assigned pigment during the test.
Two propagation steps are given below. (a) Draw the intermediate compound in the Step 2 box. (Keep Br2.) (b) Draw the appropriate curved arrows - in the Step 1 and 2 boxes - to show the mechanism of each step. See the Hint for formatting procedure..
A mixture of gases contains 0.26 mole CH4, 0.38 mole C2H6, and 0.18 mole C3H8. The total pressure is 1.50 atm. Calculate the partial pressures of the gases.
an unknown organic compound is mixed with 0.5190 g of naphthalene crystals to give a mixture having a total mass of
The Milikan experiment is important because it determined the of an . Using Thomson's and Milikan's the of an was determined. Rutherford's experiment is important because it clearly demonstrated that the is mostly
The white precipitate obtained when cold HCl was added to an unknown solution was completely insoluble in both hot water and NH4OH
What is the pressure in a 10.0- cylinder filled with 0.455 of nitrogen gas at a temperature of 315
Please use the information given regarding molybdic acid. Molybdic acid is diprotic acid with the formula, H2MoO4. The values of Ka1 and Ka2 are approximately 6.3 X 10^-5 and 6.3 X 10 ^-9. Calculate the approximate pH of a 0.750M H2MoO4 solution.
Find the PH of the final mixture when a solution containing two weak acids, i.e., 4mM ethylene (Kb1=4.72x10-4) and 2mM ethylene (Kb2=10-4) is titrated with twice its volume of 3mM HCL
Calculate the crystal field stabilization energy (CFSE) in Dq units (show your work) for the following octahedral complexes
The following data were obtained when measuring the delta H of neutralization for the reaction of HCl with NaOH.
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