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A dry-cleaning solvent (molecular weight = 146.99 g/mol) that contains C, H, and Cl is suspected to be a cancer-causing agent. When a 0.325 g sample was studied by combustion analysis, 0.583 g of CO2 and 0.0790 g of H2O formed. How many moles of each of the following were in the original sample?
Draw a doagram to show the changes in potential energy that occur from the rotation around the C1-C2 bond of 1-bromopropane.
a solution was prepared by mixing 50 ml of 0.100 M HCl with enough water to get 250 ml solution . what is the M of the final solution of hydrochloric acid?
Capsaicin, the compound that gives the hot taste to chili peppers, has the formula C18H27NO3. (a) Calculate its molar mass.
a solution is prepared by dissolving 1.98 g of an unknown nonelectrolyte in 21.00 g of cylcohexane tf 6.6 oc and kf
A gas mixture of methane and steam at atmospheric pressure at 773.15K is fed to a reactor, where the following reactions occur: CH4+H20->CO+3H2 and CO+H2O->CO2+H2
Consider the following observations taken on successive, cloudless autumn mornings. On the first day, a considerable amount of frost is on the grass at sunrise. On the second day, only dew appears on the grass. On which day is the temperature incr..
An uncovered cup (1/2 pint) of trichloroethane (d=1.325 g/mL) is kept in an 18-ft3 refrigerator at 39 F. What percentage (by mass) of trichloroethane is left as a liquid when equilibrium is established
What is the pH of a buffer prepared by adding 0.809 mol of the weak acid HA to 0.406 mol of NaA in 2.00L of solution? The dissociation constant of is 5.66*10-7
The pressure on a sample of an ideal gas is increased from 715 mmHg to 3.55 atm at constant temperature. If the initial volume of the gas is 485 mL, what is the final volume of the gas
Assuming that some of the maleic anhydrisde hydrolyzes prior to the diels alder reaction, what byproduct would you expect to be present after the diels alder reaction is run
discrete inquires at a company situated on the lake and employee confesses to you that they have been dumping 89 g/min for years but that the dumping has now stopped. If lake has a residence time of 100 days, the flowrate into the lake is 10 m3/s,..
3.60 g of liquid methanol ch3oh is placed in an empty 20.0 l container at 45.0degc. if the volume of the container is
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