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An ammonia/ammonium buffer solution contains 0.19M NH3 and 0.61M NH4+. The Kb value of ammonia is 1.8 x 10^-5 . Calculate the pH of this buffer.
Calculate the equilibrium constant, Ka for the acid, HA if, at equilibrium, the pH of a 2.1 M solution of HA is 3.43
A gaseous reaction occurs at a constant pressure of 50.0atm atm and releases 74.8kJ kJ of heat. Before the reaction, the volume of the system
How does boiling point relate to freezing in this scenario. would the same one with the higher bioling point also have a lower freezing point. why
The minimum amount of energy required to bring about a chemical reaction is called
The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 C The specific heats of C2Cl3F3(l) and C2Cl3F3(g) are 0.91 J/g-K and 0.67 J/g-K, respectively.
What is the final dilution obtained after each dilution series shown below? Express each answer in exponential numbers.
gaseous CO2 can react with H2O and affect the pH of the solution. Write the balanced chemical reaction that occurs. Use this reaction to describe why solutions of distilled water will test slightly acidic.
the structure of a protein by both NMR and X-ray crystallography and they differ in one region. Which is more likely to be the true structure of the protein when dissolved in solution? Why?
what is the boiling point of the solution in which you are going to cook spaghetti if it contains 58.0 g of nacl
What is the solubility of MnS, in grams per liter, in a buffer solution that is 0.115M HC2H3O2 - 0.500M NaC2H3O2 ? For MnS, Kspa=3x10^7
When acid is added to a solution of sodium hydrogen carbonate (NaHCO3), vigorous bubbling occurs. How is this reaction related to the existence of carbonic acid (H2CO3) molecules in aqueous solution
Determine the values of KM and Vmax for the decarboxylation of keto acid given the following data
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