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Two 20.0g-ice cubes at -12.0 C are placed into 235 g of water at 25.0 C. Assuming no energy is transferred to or from the surroundings, calculate the final temperature of the water after all the ice melts.
heat capacity of H2O (s) 37.7 J/(mol K)
heat capacity of H2O (l) 75.3 J/(mol K)
enthalpy of fusion of H2O 6.01 kJ/mol
If a cylinder of NO has a volume of 20.00L and a pressure of 26.98 atm at 20 degrees Celcius, what is the mole fraction of NO knowing that there are 21.55moles of Nitrogen?
Calculate the percent yield of if the reaction produces 169g of C2H5Cl .
Mixtures of helium and oxygen are used in scuba diving tanks to help prevent the bends, which is a condition caused by nitrogen bubbles forming in the bloodstream.
Explain the fact that even though dibenzoylmethane is not a methyl ketone it gives a positive iodoform test
What is the balanced chemical equation for the rearrangement of benzopinacol to benzopinacolone using iodine and acetic acid?
The atmospheric sulfur dioxide concentration over a certain region is 0.12 ppm by volume. Calculate the pH of the rainwater due to this pollutant. Assume the dissolution of SO2 does not affect its pressure.
The osmotic pressure,pie , of a solution of glucose is 83.1atm . Find the molarity of the solution at 298k .
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
Calculate the work done (in Joules) by the gas if it expands. (a) against a vaccum
What is the latent heat of vaporization Tsat in kJ/mol? (Answers are 1366 kW and 28.4 kJ/mol) Please show work for good rating.
the iodine be located on the same carbon with opposite placement
A 52.0-g sample of an alloy at 93.0°C is placed into 379 g of water at 22.0°C in an insulated coffee cup. Assume that no heat is absorbed by the cup.
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