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A mixture of ideal gases having a total mass of 14.1 g is placed in a 13 L vessel at 251.0 K. The equilibrium pressure is measured to be 1.9 bar. Calculate the average molar mass of the gas mixture.
Write a complete mechanism of reaction of 2,4-dinitrophenylhydrazine with acetaldehyde.
in a coffee-cup calorimeter 1.50 g of nh4no3 is mixed with 76.0 g of water at an initial temperature of 25.00degc.
this is a post lab question: you did not correct for the barometric pressure for the vapor pressure of water. what happens to your calculations
How many isomers of dimethylcyclohexanediol could you get from complete hydroboration-oxidation of 1,4-dimethyl-1,4-cyclohexadiene? Draw them all.
A buffer initially contains 0.10 mol acetic acid and 0.13 mol of sodium acetate in 1.00 L. 0.02 mol of potassium hydroxide is added to the buffer
A 1.500-g sample of a mixture containing only Cu2O and CuO was treated with hydrogen gas to produce 1.276 g pure copper metal. Calculate the percent composition by mass of the mixture.
Carbon NMR has only the following peaks: 29.8, 36.1 and 206.8 ppm. Propose a structure of this compound and explain splitting pattern and the ratio
After the addition of a large excess of the acid solution (in comparision with the acid volume needed to reach the equivalence point). Tell how many milliliters of acid are required to reach the equivalence point.
Some of the cyclohexane solvent vaporized during the temperature versus time measurement. Will this loss of cyclohexane result in its freezing point being recorded as too high
What reactants are needed to make bromocyclohexane into cyclohexanol without producing any (or very little) cyclohexene
The extract was filtered and placed in a 50.00ml volumetric flask which was filled to the mark. 5.00ml of the solution was transferred to a second 50.00ml volumetric flask. The diluted solution from the second volumetric flask was found to contain..
Describe two different ways by which electrons can move from the valence band to the conduction band.
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