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A compound contains only C, H, N, and O. A 1.279g sample was burned to give 1.60 CO2 and .77g H2O. A separately weighed 1.625g sample contained 0.216g N. What is the empirical formula of this compound?
About how much phenacetin will remain dissolved when the water calculated (94ml) is cooled to room temperature
Which ones of the following salts contains a metal that will undergo extensive hydrolysis when dissolved in water
Calculate its standard heat of combustion in kilojoules C5H12O with a Delta H of -313.6 kJ/mol
The total pressure of a mixture of N2O4 and NO2 is 1.5 atm. If Kp=7.1 (at 25 degrees C) calculate the partial pressure of each gas in the mixture.
Why is there a difference in water soluility when looking at the structure of methyl ethyl ketone and chlorobenzene. Methyl ethyl ketone has a water solubility of 268 g/L, while chlorobenzene has a water solubility of 0.47 g/L.
a solution of sulphide ct10-6m is blended into a 0.4m sodium chloride solution in a closed container. plot a pc-ph
One way to do this is to mix oxygen with helium. Assume a mixture of 10.% oxygen and 90.% helium. Assuming Henry's law behavior, calculate the levels of oxygen and helium in the blood of a diver at 100 m. Assume T = 298 K.
the average ph of precipitation in rural areas is 7.00. assuming that the phnbspis controlled by the carbonate system
Draw the skeletal structure of the major organic product produced when 2-methylpropanoyl chloride reacts with 3-methylbutanoic acid in the presence of the weak base, pyridine.
What is the pH of a solution made by dissolving 46g of acetic acid in enough water to make 700 ml of solution
A flask contains 0.110 mol of liquid bromine, Br2. Determine the number of bromine molecules present in the flask.
What must the minimum temperature of its energy source be if it is to produce work with an efficiency of 0.75?
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