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The saturated solutions of Ca(OH)2 contain a white solid which is removed by filtering. What is this solid? If that solid were not removed, how would it affect the calculated values of the solubility product constant (Ksp) and the solubility of Ca(OH)2?
A solution is made by dissolving 25.7 g of NaOH in approximately 450 mL of water in a volumetric flask. The solution becomes quite warm, but after it is allowed to return to room temperature, water is added to total 500 mL of solution
What is the effect of adding base to an aqueous solution of ammonia. 1-PH of the solution will increase 2-the conc. of NH4 will decrease 3-the conc. of NH3 will increase
What mass of NO2 can be produced by the complete reaction of 45.00 g of ammonia with 94.00 g of oxygen
Calculate the molar mass of the unknown gas. (Remember that the faster the rate of effusion, the shorter the time required for effusion of 1.0 L; that is, rate and time are inversely proportional.)
What mass of glucose C6H12O6, would be required to prepare 5.000 X 10^3 L of a 0.215 M solution.
your patient suffers from medium chain acyl CoA MCAD) deficiency. compared to a normal person, you would expect all of the following except
Design a laboratory set-up that would enable you to separate a mixture of three hydrocarbons with different boiling points. Draw and label a diagram of your set-up
Consider an ideal gas with an absolute temperature of T1. To what temperature would you need to heat the gas to double its pressure?
the polar liquid will have the higher boiling point, since its molecules have dipole-dipole interactions. e. they will have similar boiling points, since the dispersion forces depend upon molar mass
What mass of carbon dioxide is produced from the complete combustion of 1.80×10?3 of methane? Express your answer with the appropriate units.
Calculate the total degrees of freedom over the entire process. Next, calculate the degrees of freedom around each unit operation. Label all calculations.
A mix contains 0.540 mol He (g) , 0.420 mol Ne (g) , and 0.050 mol Ar (g). Placed in 1 Liter container at 25*C.
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