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Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 65.0 {\rm L} and which contains {\rm O_2} gas at a pressure of 16500 {\rm kPa} at 23^\circ C.
Explain why the rates of diffusion of nitrogen gas and carbon monoxide are almost identical at the same temperature.
Calculate the mass of silver chloride required to plate 235 mg of pure silver. Silver chloride, often used in silver plating, contains 75.27% .
what is the maximum wavelength of light that can be used to exhibit the photoelectric effect with lithium metal? it requires 279.7 kJ to remove one mole of electrons from Li atoms
How many fluoride atoms are in the tube of toothpaste? How many grams of sodium ion are in 2.10 toothpaste? How many molecules of triclosan are in the tube of toothpaste?
Most organic polymers are named based on the monomers used in their production. However, poly(vinyl alcohol) (PVA) is not made from vinyl alcohol,
Legend has it that the Greek philosopher, Socrates, died after drinking a tea made from hemlock leaves. Coniine, the toxic compound found in hemlock, is calculated to have an LD50 in humans of 10 mg/kg.
If you have 375 molecules in a 10^-4 dilution, how many molecules were in the original solution
A balloon was filled to a volume of 2.50 L when the temperature was rm 30.0 C. What would the volume become if the temperature dropped to rm 11.0 0C.
Calculate the heat needed at 0 degrees Celsius in each of the following and indicate whether heat is absorbed or released: a) joules to freeze 35.2 g of water; b) joules to freeze 275 g of water; c) kilojoules to melt 145 g of ice; d) kilojoules t..
a sample of gas has a mass of 38.8 mg. it's volume is 224 mL at a temperature of 55 degrees C and a pressure of 886 torr. Find the molar mass of the gas.
Determine the percent yield of barium sulfate If the actual yield = 0.456 grams?
A tank at is filled with of sulfur hexafluoride gas and of carbon monoxide gas. You can assume both gases behave as ideal gases under these conditions.
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