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What orbital is filled when iodine gains an electron to be become a negative ion?
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A compound composed of only C and F contains 17.39% C by mass. What is its empirical formula?
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1. Propane, C5H7OH, is a hydrocarbon that is commonly used as fuel for cooking. Calculate the volume of air at 30 C and 1.00 atmosphere that is needed to burn completely 10.0 grams of propane. Assume that air is 21.0 percent O2 by volume.
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if 30.0L of oxygen are cooled from 200c to 1c at contant pressure, what is the new volume of oxygen
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Determine the volume of a 0.550M KMnO4 solution required to completely react with 2.55g of Zn
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Free Energy and Equlibrium Consider the system: A(g) B(g) at 25 C. Assume that G A = 8218 J/mol and G B = 11260 J/mol. Calculate the value of the equilibrium constant for this reaction. ans : 1pts A non-equilibrium mixture of 1.00 mol of A(g) (partial...
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What is the name of Co(NH3)5NO22+ complex ion?
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crystals unit cell
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The brown gas NO2 and the colorless gas N2O4 exist in equilibrium, 2NO2 N2O4. In an experiment, 0.625 mole of N2O4 was introduced into a 5.00 L vessel and was allowed to decompose until equilibrium was reached. The concentration of N2O4 at equilibrium was 0.0750 M. Calculate Kc for the...
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Sample Questions
- 1. For organic chemistry, what is a concerted shift? How do things like acids or heat affect them? What other factors affect them?
- 2. Which of the following reactions is an acid-base neutralization reaction? Why are the rest of the answers incorrect?
- A. AgNo3 (aq) + NaI (aq) --> AgI (s) + NaNO3 (aq)
- B. S8(s) + 8O2 (g) --> 8SO2(g)
- C. Na3PO4 (s) + 2H2O (l) --> H2 (g) + 2NaOH (aq)
- D. Ca (OH)2 (aq) + 2HI (aq) --> CaI2(aq) + 2H2O (l)
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