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A hot piece of iron (mass 400.0, specific heart 0.451 J c) is heated in a flame, then plunged into an insulated container containing 1.00 kg of water (specific heat 4.184 J C) at 20.00 degrees Celsius. When thermal equilibrium is reached, the water temp becomes 32.8 degrees C. Estimate the original temp of the hot piece of iron.
What is the key intermediate in the glycolysis pathway that diverges to ethanol in microorganisms. Why is the concentration of ethanol in wine typically 12% or less
magnesium oxide decomposes into magnesium and oxygen. if12.09 g of magnesium oxide decomposes to form7.29 g of
Choose the metal that is produced by electrolysis of its molten chloride salt. a) Li b) K c) Al d) Ca e) All of the above
What is the yield of ATP when Fructose-1,6-bisphosphate is completely oxidized to CO2 in mammalian cell? Assume that glycolysis, TCA, and oxidative phosphorylation are fully active.
The subsequent charges on individual oil droplets were obtained during an experiment similar to Millikan's determine a charge for the electron in Coulombs
The gas remaining in the bottle slowly warms up to 285 K. What is the final pressure in the bottle for a monatomic gas, for which CV = 3R/2, and for a diatomic gas, for which CV = 5R/2?
albr3 is sold as a solution in ch2br2. this is a rather exotic solvent and somewhat difficult to work with as well
With respect to the condenser utilized in an apparatus for simple distillation why the lower rather than the upper be used for the water inlet?
The molecular weight of X is 65.0 g/mol. The heat required to melt one mole of the solid phase is 20.0 kJ, the heat required to sublime one mole of the solid phase is 40.0 kJ, and the heat required to vaporize one mole of the liquid phase is 30.0 ..
A 1-L flask is filled with 1.20g of argon at 25C . A sample of ethane vapor is added to the same flask until the total pressure is 1.15 atm. A) What is the partial pressure of argon, P Ar , in the flask
If 4.800* 10^-5 mol of uranium-238 will effuse through a hole in 125 seconds, how many mol of uranium-235 will effuse through the same hole in the same amount of time
What is the specific heat of the substance
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