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The definition of PH is PH = -log[H+], where [H+] is the concentration of the hydrogen ion. If [H+] = 1.2 x 10 ^-5, determine the PH using correct number of significant figures.
How many equivalent resonance forms can be drawn for SO2 without expanding the octet on the sulfur atom? (A) 0 (B) 1 (C) 2 (D) 3 (E) 4 17. In which of these species does the first atom in the chemical formula violate the octet rule? 18. How many e..
A solution contains three anions at the folowing concentrations: .20M CrO4^2-, .10M CO3^2-, and .010MCl^-. if a dilut solution of AgNo3 is added to the solution
Calculate the molar mass (g/mol) of a gas whose root mean square speed is 796 m/s at 512 K.
1. what possible precipitate might form by mixing 50.0 ml of 1.010-4 m nacl with 50.0 ml of 1.010-6m agno3? will it
use curved arrows to show the flow of electrons in each step, and note any relevant charges or lone pairs of electrons.
Styrene is produced by catalytic dehydrogenation of ethylbenzene at high temperature in the presence of superheated steam. A.) Given the following data, what is the delta Hrxn, delta Grxn and delta Srxn at 298 K
Why would it be more appropriate to put the elements La and Ac in the bottom two periods and put Lu and Lr in the transition metals? Why don't we see the use of any sublevels higher than the f sublevel?
The rate of SN2 of tert-butyl bromide is faster in polar aprotic solvents than in polar protic solvents. Why? a. polar aprotic lower the potential energy of the product.
If a person produces and exudes polyunsaturated oil from their skin, how does it ultimately make clothes smell bad, and how does baking soda remove the odor?
The amount of energy released when an electron adds to a neutral atom to give a negative ion is called the atom's electron affinity
Calculate the pH during the titration of 25.1 mL of 0.565 M dimethylamine, (CH3)2NH with 0.170 M HCl after 14.2 mL of the acid have been added. Kb of dimethylamine = 5.4 x 10-4.
The first-order decomposition of S2O6(g) to form SO3(g), has a half-life of 1.262 x 10-3 s at 45oC. How long will it take for 60% of a 0.34 M sample to decompose at 45oC
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