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While 41.67mL of the calcium hydroxide solution is added to a 250.00mL volumetric flask, as well as water is added to the mark, explain what is the final calcium ion concentration (morality)?
Find the equilibrium concentrations of A and B for a=2 and b=1. Assume that the initial concentration of is a= 1.0 and that no b is present at the beginning of the reaction. Consider the following reaction and associated equilibrium constant:
A Sample of 4.6434g of benzoic acid, C7H6O2, is dissolved in 50.0033 g of camphor. What is the freezing point of the resulting solution. For camphor, Tf= 179.5 C, Kf = 40C/m
should steam distillation be considered as a method of isolation and purification of an organic liquid that has a vapor pressure
Is it possible for an atom to absorb a photon of red light and reemit a photon of violet light
the freezing point of the resulting solution is 3.77*C. The freezing point of pure benzine is 5.48*C. Calculate the molar mass of the compound.
An insecticide has the following composition: 47.5% C, 2.54% H, and 50.0% Cl. Determine the empirical formula.
The equilibrium constant Kc for the formation of ammonia: N2(g) + 3H2(g) -> 2NH3(g), is 3.6 x 10^8 at 25 C. What is the concentration of ammonia, when the equilibrium concentrations [N2] = 5.4 x 10^-3 M, and [H2] = 2.1 x 10^-3
A 16.96 gram sample of an organic compound containing C, H and O is analyzed by combustion analysis and 16.58 grams of CO2 and 3.394 grams of H2O are produced.
At 21.0 C, a solution of 18.26 g of a nonvolatile, nonpolar compound in 33.25 g ethyl bromide, C2H5Br, has a vapor pressure of 336 torr. The vapor pressure of pure ethyl bromide at this temperature is 400 torr. What is the molecular mass of the co..
If the entropy of a collection of molecules in 50,000 boxes is 3.73E-20 J/K, how many molecules are there
Write the overall cell reaction of each. Identify the anode and cathode of each. Arrange the three metals in order of decreasing ease of oxidation(most easily oxidized metal first
A student separated the components of a 2.743 g sample of beach sand. The separation yielded 0.632 g sea salt, 0.456 g sea shells, and 1.352 g sand. (A) calculate the mass percent of each component in the original mixture. (B) Calculate the total ..
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