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Consider these changes.
(a) Hg (l) ---> Hg(g)(b) 3O2(g) ---> 2O3(g)(c) CuSO4 x 5H2O(s) ---> CuSO4(s) + 5H2O(d) H2(g) + F2(g) ---> 2HF(g)
At constant pressure, in which of the reactions is work done by the system on the surroundings? By the surroundings on the system? In which of them is no work done?
What is the specific heat of liquid water, written with correct units? Refer to Table 5.2 or Appendix B in your textbook, or your lecture notes.
What is the dew point of a mixture of air and water vapor at 60°C and 1 atm in which the mole fraction of the water is 12%? The total pressure on the mixture is constant.
How many grams of propane must be burned to provide the heat needed to melt a 75.0-g piece of bromine (at its melting point) and bring the resulting liquid to a boil (with no vapourization)? Assume a constant pressure of 1 bar and use the followin..
When diborane (B2H6) dissociates in either solvents, such as tetrahydrofuran (THF), a complex between borane (BH3) and the ether is formed. (a) In the Lewis sense, what is the function of BH3 as it forms the complex? Explain.
how does edta react with soap. i know it reacts with sodium by replacing some of the hydrogens of the hydroxyl groups
The Dumas method is used to analyze an unknown substance. 0.500 g of liquid was place in the 800.0 mL bulb. When heated to 68.7 C, the liquid vaporized, and the pressure was measured to be 154.5 mmHg.
Which of the following is true of the individual resonance structures which contribute to a resonance hybrid? a) each resonance structure actually exists b) each resonance structure is more stable than is the resonance hybrid c) in going from one ..
calculate the maximum volume in mL of .15 M HCl that each of the following antacid formations would be expected to neutralize. Assume complete neutralization.
sulfuryl chloride so2cl2 in the gas phase decomposes to sulfur dioxide and chlorine gas.a what is the rate law?b what
Oxygen makes up 46.7 % by mass of the Earth's crust. How many grams of oxygen are present if a sample of the Earth's crust has a mass of 335 g
The J=3---J=2 pure rotational transtion for the CS molecule occur at 146.831 GHZ. Calculate the bond length(in pm) for the CS molecule, assuming that there is negligible centrifugal distortion.
What mass (in grams) of solid Na2SO4 would need to be added to 250 grams of water to make an ideal solution with a boiling point of 103.6°C? (Kb for water is 0.512°C/m)
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