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The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 C The specific heats of C2Cl3F3(l) and C2Cl3F3(g) are 0.91 J/g-K and 0.67 J/g-K, respectively. The heat of vaporization for the compound is 27.49 kJ/mol. How much heat required to convert 58.0g of C2Cl3F3 from a liquid at 13.90 C to a gas at 88.15 C?
If the actual yield is 220.0 g and the theoretical yield is 275.6 g then what will be the percent yield of ferrous sulfide.
When the reaction 2H2S(g)-> 2H2(g) + S2(g) is carried out at 1065°C, Kp = 0.012. Starting with pure H2S at 1065°, what must the initial pressure of H2S be.
How many grams of Fe2O3(s) are produced from 500.0 g of FeS2(s) and 400.0 g of oxygen gas?
The average radius of a molecule of lysozyme, an enzyme in tears is 1430pm,what is the radius in nanometers.
A sample of H½O with a mass of 46.0 grams has a temperature of -58.0 C. How many joules of energy are necessary to melt 46.0 grams of ice? (Use 2.1 J/g.C for the specific heat of ice, and 334.4 J/g for the heat of fusion of water.)
Zinc sulfide reacts with nitric acid to give zinc sulfate and nitric oxide. Calculate the mass of zinc required to react with 110 mL of 0.15 M nitric acid.
Determine the maximum number of electrons that could be emitted from metal by a burst of light with a total energy (E)of 9.86× 10^(-7) Joules?
for a certain change the value of U is -2.37 kJ. During the change, the system absorbs 650 joules. how much work did the system do.
compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased to 650psi at a temperature of 26oC?
How many moles of oxygen atoms are combined with 4.20 moles of chlorine atoms in Cl2O7?
At 25 c the ion product of water, Kw is 1.9 x 10^-14. What is the concentration of hydroxide ions in a solution where the concentration of hydrogen is found to be 5.0 x 10^-15 mol dm^-3.
A solution of ethanol (C2H5OH) in water is prepared by dissolving 63.4 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
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