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In which of the following species is the octet rule violated by the central atom when the central atom has a formal charge of zero?
A) SOCl2
B) CCl4
C) H2S
D) PF3
E) N2F4
Under certain conditions, a reaction leads to ?SUNIV = -333.5 J/mol*K at 150 degrees C. If ?SSYS = 237.2 J/mol*K at that temperature, determine
If a balloon containing 1,200 L of gas at 25C and 760 mm Hg pressure ascends to an altitude where the pressure is 380 mm Hg and the temperature is 54C, the volume will be.
Consider the molecule cyclohexane, which contains only hydrogen and carbon atoms. When a sample is burned in oxygen, 4.822 g of CO(2) and 1.650g of H(2)O are obtained. What is its simplest formula?
Identify the steric number, shape, hybridization about the central atom and molecular polarity of sulphuryl chloride, SO2Cl2.
For each of the following reactions, balance reaction, determine the number of electrons transferred in the reaction, and write the equilibrium constant
The rate constant of a reaction is 4.7 10-3 s-1 at 24°C and the activation energy is 33.6 kJ/mol. What is the value of k at 75°C?
A 8.0 L sample at 25 °C and 1.00 atm of pressure contains 0.5 moles of a gas. If an additional 0.75 moles of gas at the same pressure and temperature are added, what is the final total volume of the gas?
Some MF2 is dissolved in water at 25oC to make a saturated solution. (M is a mystery metal - it's identity can be ignored.) Some of the solution is removed and tested
Suppose that the solvent ethanol could serve to replace the methanol in this process, but at the expense of double the concentrations of the solvent in the atmosphere.
What is the hydronium ion concentration of a 0.20 M solution of an acid with a Ka
Determine the molar mass of the acid and given that the pH at the half way point to the equivalence is 3.86. Calculate the Ka of the unknown acid.
evaluate its purity and to determine whether it might be identical to a given sample of an illegal drug, a white crystalline solid. Clearly explain what you would do, why you would do it, and how you interpret your results
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