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The equilibrium constant for the elctrochemical reaction 2Fe+Cu3(PO4)2 = 2FePO4 + 3Cu occuring in aqueous solution at 298k is?
When 2.20 grams of Cr(CO)6 reacts according to the following equation at 400 °K in a closed system the temperature goes down and 5.2 kJ of hear is absorbed
A gas occupies a volume of 380. ml at 135 °C? At what temperature will the volume of the gas be equal to 535 ml?
What is the equilibrium constant Kc of this reaction? Use an ICE table with numbers.
A bag of potato chips contains 580 mL of air at 25°C and a pressure of 755 mm Hg. Assuming the bag does not break, what will be its volume at the top of a mountain
If you had a saturated solution of NaNO3 at 40 degrees Celsius that contained 85 grams of water, how much of the salt would you need to add to have a saturated solution at 70 degrees Celsius?
Consider the reaction 2 Al2O3(s) ! 4 Al(s) + 3 O2(g) . H = +3339.6 kJ/mol What is H for the formation of one mole of Al2O3(s) from the elements.
The weight of the product (Hexaphenylbenzene) for this part of the reaction was 2.04 g. What is the percentage yield? What is the overall percent recovery for the three step process?
Why must the distillation head temperature be maintained below 45?C during the cracking of dicyclopentadiene?
The absorbance at 595 nm was 0.78 and, according to a standard curve, corresponds to 0.015 mg of protein on the x-axis. What is the protein concentration of the original solution?
write molecular, complete ionic, and net ionic equations for the reactions that occur, if any, when solutions of the following substances are mixed? a. nitric acid and potassium carbonate
What is the molar mass of a gas if 0.250 g of the gas occupies 215 mL at 618 mmHg and 30.0°C?
When power was turned off to a 30.0 gal. water heater, the temperature of the water dropped from 75.0°C to 22.5°C. How much heat was lost to the surroundings? (1 gal = 3.785 L) Assume the density of water is 1.00 g/mL.
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