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Predict the freezing point of a solution prepared by dissolving 8.9 g MgCl2 in 98 g H2O. Kf for water is 1.86 °C m-1. A) 3.5 °C B) -3.5 °C C) 5.3 °C D) -5.3 °C E) -0.51 °C
Identify the limiting and excess reactions and how many grams of the excess will be unused.
More strong base is added until the equivalence point is reached. What is the pH of this solution at the equivalence point if the total volume is 38.0
Heart pacemakers are often powered by lithium-silver chromate "button" batteries. The overall cell reaction is: 2 Li(s) + Ag2CrO4(s) -> Li2CrO4(s) + 2 Ag(s)
How do you rationalize the ordering of the following pairs in the spectrochemical series
what would happen to the pressure inside the container if you decrease the temperature to one fourth the original
compound noradrenaline contains 56.79% C, 6.56% H, 28.37% O, and 8.28% N by mass. What is the empirical formula for noradrenaline?
A solution is 0.43 M Sr(OH)2. What are the concentrations of H3O+ and OH ‾ in this solution?
Determine the partial pressure and total pressure of the gases and Find the partial pressure of carbon dioxide in a gas mixture
A sodium chloride solution is made at 68 deg F that contains 16.28 g of NaCl in 100 cc of fresh water. The fresh water density is 0.9982 g/cc. What is the density of the solution in g/cc and Lbm/gal
Calculate (a) the work done when the gas expands isothermally against a constant external pressure of 200 Torr until its volume has increased by 3.6 dm3, and (b) the work that would be done if the same expansion had occurred reversibly.
smaller dipole moment than formaldehyde, H2C=O, even though it contains electronegative chorine atoms in place of hydrogen. Explain
If you dilute 21.0 mL of the stock solution to a final volume of 0.500 L, what will be the concentration of the diluted solution?
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