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A solution of ethanol and n-propanol behaves ideally. Calculate thechemical potential of ethanol in solution relative to that of pureethanol when its mole fraction is 0.40 at its boiling point(78.3oC)
How many grams of dry NH_4Cl need to be added to 1.60 L of a 0.700 it M solution of ammonia, NH_3, to prepare a buffer solution that has a pH of 8.62? K_b for ammonia is 1.8 * 10^{-5}.
Sunlight causes the following reaction to take place in the atmosphere: NO2(g) NO(g) + O(g). Calculate the standard enthalpy of the reaction from the following information and from additional information in Appendix 2A
acetic acid is placed in a flask and is titrated with 25.00 mL 0.100 M sodium hydroxide
A 1.20-L container contains 1.10 g of an unknown gas at STP. What is the molecular weight of the unknown gas?
The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?
Calculate the pressure when the volume is 1.27 L and the temperature is 3.00 × 102 K.
Rate of Initiated Radical Polymerization, What are the basic steps of initiated radical polymerization? Derive the rate expression of initiated radical polymerization
Enzyme X is a highly pigmented protein that imparts the characteristic color to certain blue-green algae. It also facilitates a reaction necessary to the survival of this species
What is the iron molar concentration in the serum sample? Not that the following relationship may be used: Aunk/Aunk+std - Cunk/{Cunk+Cstd}
Calculate the pH at the equivalence point for titrating 0.170 M solutions of each of the following bases with 0.170 M HBr.
Using calorimetry experiment, how many grams of CaCl are required to cause a burn at 60 degrees celsius in 1000mL of water?
A 1- flask is filled with 1.45 of argon at 25 . A sample of ethane vapor is added to the same flask until the total pressure is 1.30 .What is the partial pressure of argon, , in the flask?
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