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Given that the acidity constant for benzoic acid (HOBz) is Ka=6.5x10-5, calculate the basicity constant, Kb, of the benzoate ion (OBz-).
What mass of NaOH is needed to precipitate the Cd2+ ions from 48.0 mL of 0.500 M Cd(NO3)2 solution?
How many joules of energy are necessary to heat the steam from 100.0 degrees Celsius to 114.0 degrees Celsius if the specific heat of steam is 2.01J/g degrees Celsius? Write your answer in 3 significant digits.
What is the difference between a "single beam" and a "double beam" instrument. What are some advantages and disadvantages for each of these instrument designs
A 15 mL sample of a solution of Pb(ClO3)2 was diluted with water to 19 mL. A 15 mL sample of the dilute solution was found to contain 0.027 moles of Pb2+. What was the concentration of Pb(ClO3)2 in the original undiluted solution.
You need to produce a buffer with pH = 4.1 by dissolving a weighed amount of sodium formate (FW = 68.0072) in 500-mL of 0.45-M formic acid
if 150g of water is collected during complete combustion of 166g of butane with ocyben, calculate the percent yield of water.
How long will it take in minutes until 42% of the original NO2 remains if the rate constant is 0.0066L/(mol sec) and the initial amount of NO2 is 0.45 mol/L?
Calculate the concentration of H2SO4 if 25.00 mL of the acid is titrated with 41.70 mL of 3.000 M KOH to produce K2SO4 and water
calculate the number of moles in each of the following quantities.a atoms of each element in 3.35 moles of
The solubility of N2 in blood can be a serious problem (the "bends") for divers breathing compressed air (78% N2 by volume) at depths greater than 50 ft. Find the volume (in mL) of N2, measured at 25degrees celsius and 1.00 atm, released per liter..
How many molecules (not moles) of NH3 are produced from 1.52×10?4g of H2?
What is the enthalpy of this reaction. Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
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