Pressure in atm calculated
A 10.9 mol sample of argon gas is maintained in a 0.787 L container at 298 K. What is the pressure in atm calculated using the van der Waals' equation for Ar gas under these conditions? For Ar, a = 1.35 L2atm/mol2 and b = 3.22E-2 L/mol.
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All chemical used in this test are binary compounds. What portion of the periodic table is responsible for the color observed?
An empty Erlenmeyer flask weighs 194.4 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 489.1 g. What is the flask's volume?
You have read about the methods for allocating support costs to supporting departments. Offer at least two example scenarios, including calculations, where these would be appropriately used, and explain why you chose those scenarios.
In a particular experiment, 255 g of CaCO3 was exposed to 135 g of SO2 in the presence of an excess amount of the other chemicals required for the reaction. a) What is the theoretical yield of CaSO3?
The vapor pressure of an unknown compound at 25 degrees C is 94.6 Torr and its enthalpy of vaporization is 30811 J/mol. Estimate the normal boiling point of this compound. assume the enthalpy of vaporization is independent of temperature.
Certain metals can be extracted from their salts (usually halides: those containing Group 17 elements such as chlorine, fluorine, bromine or iodine) by the process of electrolysis.
A research supervisor told a chemist to make 100 g of chlorobenzene from the reaction of benzene with chlorine and to expect a yield no higher that 65%. What is the minimum quantity of benzene that can give 100 g of chlorobenzene if the yield is 6
Rhodium has a density of 12.45 g/cm3. This metal crystallizes in a face-centered cubic unit cell. Calculate the diameter of a rhodium atom?
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