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Which of the following set of quantum numbers (ordered n, l, ml, me ) are possible for an electron in an atom?
(a) 2, 1, 0, -1
(b) 3, 1, -2, -1/2
(c) -2, 1, 0, -1/2
(d) 2, 1, 3, 1/2
(e) 4, 3, -2, 1/2
(f) 3, 2, 2, -1/2
(g) 2, 2, 2, 1/2
(h) 5, 2, 1, -1/2
For a zero order process, mathematically derive the first half-life equation involving the evaporation of fingerprints organics from the scene of a crime.
calculate the molar concentration of OH- ions in an 0.85M solution of hypobromite ion, BrO- (Kb = 4.0x10^-6). what is the pH of this solution?
What is the percent yield of a reaction in which 244 g phosphorus trichloride reacts with excess water to form 144 g HCl and aqueous phosphorus acid (H3PO3)?
What is the molality if a solution in which 15 g of I2 is dissolved in 500. g of alcohol?
The products include Cr3+ ion and I2. What was reduced in the reaction and what was the reducing agent?
Titrated three different samples of KHP and determined that the sodium hydroxide molarity was 0.1234 M, 0.1244 M, and 0.1199 M, respectively. Calculate the sample mean and the sample slandered deviation?
Baking soda decomposes into sodium carbonate, water vapor and carbon dioxide. how many liters of gas will be produced at 155 C and 753 torr by the complete decomposition of 3.2 g of sodium bicarbonate?
why does a salt containing a cation from a weak base and an anion from a strong acid form an acidic solution
A buffer solution is prepared by adding 0.125 mol of ammonium chloride to 500 mL of 0.500 M solution of ammonium. What is the pH of the buffer
The following reaction is investigated (assume an ideal gas mixture): 2N2O(g) + N2H4(g)-> 3N2(g) + 2H2O(g) Initially there are 0.10 mol N2O and 0.25 mol N2H4, in a 10.0 L container. If there are 0.06 mol of N2O at equilibrium, how many moles of N..
Which of the following observations is the strongest argument that in favor of the hypothesis that protein structure and function are related?
A student has prepared a 0.309 M solution of Barium hydroxide and a 0.443M solution of hydrochloric acid for you. Determine the volume of the hydrochloric acid solution will be needed to exactly neutralize 10.0 mL of the Barium chloride solution.
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