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A solution contains 50g of nitrobenzene and a 5ml nonionic liquid uknown solution. The density of the unknown is 0.714g/mL. The Kf of nitrobenzene is 6.87 ^0C/m. Calculate the molar mass of the unknown.
the permangenate ion and determine the standard reduction potential for the reaction.
The temperature of the calorimeter rose from 25C to 33.73C. If the heat capacity of the calorimeter was 9,630 J/C, what is the value of delta H for the combustion reaction in KJ/mol.
Determine whether each of the following causes an increase or decrease in the activity of the electron transport chain. 1. High NADH concentration
perform the degrees-of-freedom analysis and calculate the rates of (1) fresh propane feed, (2) propane entering and (3) exiting the reactor
While Xeloda works well, it is effective for colorectal tumors and liver cancer. What are the drawbacks for extending this therapy to other types of cancer?
Use the graph of solubility of O2 in water vs. temperature to calculate the value of Henry's law constant KH
What is the temperature change If 84 joules of heat are added to a pure gold coin with a mass of fifteen grams? It is given that the Specific heat capacity of Au= 0.128
consider a stone column 3.00 ft in diameter and 10.00 ft high. What is is mass in pounds if its density is 3.50 g/mL.
Hydrazine derivatives are commonly used in rocket fuels. Combustion of N2H4 produces N2(g) and H2O(g). When 1.00 g of N2H4 is burned in a bomb, DT = 3.51 oC. If C = 5.51 kJoC-1, what is the quantity of heat evolved? What is DH of this reaction?
The delta G for the reaction is 2.60 kj/mol at 25 degrees C. The initial pressures are P H2 = 3.34 atm, P I2 = 0.024 atm and P HI = 0.24 atm.
calculate the percentage of empty space in 1 mol of water at 25C. Obtain the density from the experiment " Some Measurements of Mass and Volume." The volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms.
A student loaded a mixture onto a small flash chromatography column in 1 mL of methylene chloride, then proceeded to elute with hexanes/ethyl acetate
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