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How many kJ of heat are needed to completely vaporize 1.30 moles of ? The heat of vaporization for water at the boiling point is 40.6 kJ/mole.
Calculate pH of saturated solution of dicalcium phosphate (CaHPO4) in water if its solubility is 3.16x10-4 m. How much solubility of CaHPO4 will change when 1.0x10-3 m MgCl2 is added to the same saturated solution of dicalcium phosphate?
The Henry's Law constant for carbon dioxide gas in water at 25 oC is 0.031 mol/L-atm. Calculate the solubility of carbon dioxide in water at 25 oC in moles/L if the partial pressure of carbon dioxide in the headspace above a water sample is 1.68 a..
For a reaction of hydrogen with iodine, the rate constant is 2.45*10^-4 L mol-1 s-1 at 302 C and 0.950 L Mol-1 s-1 at 508 C.
carbon dioxide which is recognized as the major contributor to global warming as a greenhouse gas is formed when fossil fueels are combusted, as in electrical power plants fueled by coal, oil, or natural has.
If 100 grams of liquid water at 100 C and 200 grams of water at 20 C are mixed in an insulated container, what will be the final temperature of water
A reaction mixture initally contains 0.56 atm CO2 and 0.32 atm CO. Determine the equilbrium pressure of CO if Kp for the reactions at this temperature is 2.25?
calculate Kc for the reaction below: 2P(g)+ 5Cl2(g) 2PCl5(g) The answer provided is 240. Why is that?
What is the concentration of a solution prepared by dissolving 125 g cholesterol in hexane to a final volume of 685 mL?
A mixture of Ar and N2 gases has a density of 1.592 g/L at STP. What is the mole fraction of each gas?
If 28.9 grams of trans-2-butene reacts with 14.2 grams of HCl to form 15.5 grams of chlorobutane, what is the percent yield?
When do you expect to see signal distortions in 1H-NMR spectrums? What kind of distortions can occur? How can you minimize the appearance of distortions
A solution containing the thiourea complex of bismuth (III) has a molar absorptivity of 9.32*10^3 l/mol*cm at a wavelength of 470 nm
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