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Assume we have a solution that contains 0.050 mol/L of Ba^2+ and 0.050 mol/L Mg^2+. Calculate the concentration of Ba+ left in solution at the point that Mg+ just begins to precipitate. Assume the solution volume (and thus the ion concentrations) do not change as we add carbonate ion. The Ksp for Barium is 8.1 X 10^ -9 and the Ksp for Magnesium carbonate is 4.0 X 10^ -5. Write balanced chemical equations and Ksp expressions for each of the salts as part of your solution.
How many moles of nitrate ions are present in a sample that contains 4.82 moles of chromium(III) nitrate, Cr(NO3)3
To make strawberry jam, crushed strawberries and sugar are mixed in a 45:55 mass ratio, and the mixture is heated to evaporate water until the residue contains one-third water by mass. Calculate how many pounds of strawberries are needed to make a..
A compound contains 40.00% carbon, 6.67% hydrogen, and 53.33% oxygen. Determine the empirical formula of the compound. Give the chemical formula for calcium phosphate.
How many different tetrapeptides containing 2 molecules of alanine and 2 molecules of valine could theoretically exist?
Calculate the molality and molarity of an NH3 solution made up of 37.0 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
Suppose that each of the following pairs of compounds are being used as reactants in this experiment. Draw structures of the intermediate imines formed,
Occupies 6.0 cubic meters at a pressure of 1.5 atm. The pressure is then expanded to 2.0 atm. The temperature remaining constant, what is the new volume of the gas?
Find the pH of a 0.130 M solution of a weak monoprotic acid with a Ka value of 1.6 *10(to the power of -6)
Radioactive nitrogen-13 has a half-life of 10 minutes. After 40 minutes, how much of this isotope would remain in a sample that originally contained 96 mg?
A hot air balloon is filled with air to a volume of 4.00x10^3 meters cubed at 745 degrees celcius. the air in the ablloon is then heated to 62 degrees celcius, causing the balloon to expand to a volume of 4.20x10^3 meters cubed.
calculate the individual masses of C, H, and O in the 0.7549 g sample.
What is the expected Nernst responce, in mV, for each decade change in the gydrogen ion concentration for a glass electrode
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