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What is the solubility of CaF2 in a solution that has an equilibrium concnetration of 0.01 M EDTA ^ 4- (aq)? Ksp (CaF2) = 3.9 x 10^-11 and Kf for [Ca(EDTA)]2- = 5.0 x 10^10
A) 0.17 MB) 4.6 x 10^-5 MC) 0.067MD) 2.1 x 10^5 ME) 1.95M
A coffee-cup calorimeter contains 150.0g of water at 25.1C. A 121g block of copper metal is heated to 100.4C by putting it in a beaker of boiling water.
Which of the following is true for a system whose equalibrium constant is relatively small? a.) it will take a short time to reach equalibrium. b.) it will take a long time to reach equalibrium.
Make a schematic diagram of a cell for each of the following cell reactions. Indicate on the diagram the anode, the cathode, the direction in which the anions and cations migrate through the cell and the salt bridge
What are the potential sources of error for determining the molar extinction coefficient for methylene blue? Which sources contribute most to the uncertainty in the coefficient?
if a sample containing 1.00 ml of nitroglycerine density 1.592 gml is detonated how many total moles of gas are
What is the formula weight of CuI?
A mole of sodium hydroxide has a mass of 40 g. In order to prepare a .1M solution, how many grams of sodium hydroxide must be added to 500 mL of water
Complete the following reactions and state the dominant mechanism where indicated: (1S,2S)-1-bromo-1,2-diphenylpropane + NaOCH3 Methanol
a molar heat capacity at constant volume of 3/2R initially at 298K and 10l is expanded with the surroundings maintained at 298K to a final volume of 20L in three ways ways a) isothermally and reversibly b) isothermally against a constant extenal p..
Calcium carbide (CaC2) reacts with water to form acetylene (C2H2) and Ca(OH)2. From the following enthalpy of reaction data, calculate Δf for CaC2(s)
what differences would you expect to observe. Would the order of reaction change with respect to the dye? Would the rate constant change
To what volume should you dilute 124 mL of an 7.95 M CuCl2 solution so that 49.5 mL of the diluted solution contains 5.8 g CuCl2
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