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In the course of research, a chemist isolates a new compound with an empirical formula C3H3O2. 2.51 g of the compound when dissolved in 100. g of water produces a solution with a freezing point of -0.325°C. What is the molecular formula of the compound? (For water, Kf = 1.86°C/m.) (For your answer, enter the integer that tells the number of multiples of the empirical formula present in the molecular formula.)
A current of 3.15 A is passed through a Pb(NO3)2 solution for 1.40 hours. How much lead is plated out of the solution.
Using 1M aqueous HCl, 1M aqueous NaHCO3 and 1M Aqueous NaOH, could you separate an ethereal solution of benzoic acid and salicylic acid. If so, provide a flow chart indicating how; if not, explain why.
Two gases, oxygen (28.8 grams) and carbon monoxide (19.0 grams), are confined in a container at a pressure of 640.0 torr. Calculate the partial pressure of carbon monoxide in torr.
A 0.150 M Na2SO4 Has [Ag^+] = 9.7x10^-3 M. What is the value of Ksp for Ag2SO4 obtained with these data
Sodium bromate is used in a mixture which dissolves gold from its ores. Calculate the mass in grams of 4.68 mol of sodium bromate.
Calculate Delta H for the process. Given u ={(2a/RT) - b}/Cp,m; with Cp,m = 38.4j/K.mol; a=3.60dm6 atm and b= 0.44 dm3.mol.
Calculate the percent ionization of 0.10 M butanoic acid (Ka = 1.5 x 10-5) in a solution containing 0.050 M sodium butanoate.
A mixture containing 8ml cyclohexane, 8 ml p-xylene, and 8 ml dichoromethane was distilled. how to caculate the mole percent composition of p-xylene
Classify each reaction and give the name of all the chemical formula involved for each number
What is the barium ion concentration in a saturated barium fluoride solution made by adding solid BaF2 until no more dissolved
During ther processing of black-and-white film, excess silver (I) halides are removed by wadhing the film in a bath containing sodium thiosulfate. This treatment is based on the followig complexation reaction:
When 1,5-dibromopentane reacts with ammonia, among several products isolated is a water-soluble compound A that rapidly gives a precipitate of AgBr with acidic AgNO3 solution.
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