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When you are drawing Lewis structures, why are elements in row 3 capable of having an expanded octet (expanded valence shell), while the elements in row 2 are not capable of this?
Suggest a reason why the cyclic intermediate in the formation of methyl-e-4-methoxycinnamte from p-anisaldehyde, might have two important groups in a trans relationship
A room contains 47kg of air. How many kilowatt-hours of energy are necessary to heat the air in the house from 7 degrees celsius to 26 degrees celsius
the xy-plane and the C-atom skeleton lies on the x axis, what is the hybridization of C for the right-side CH2 group?
what is the pH of a solution prepared by mixing 25 mL of 0.10 M methylamine with 25 mL of 0.10 M methylammonium chloride?assume that the volume of the solutions are additive and that Kb = 3.7 x 10^-4 for methylamine
You have 100.0 mL of a solution of hydrochloric acid that has a pH of 3.00. You add 100.0 mL of water to this solution. What is the resulting pH of the solution?
An aqueous solution of methylamine (CH3NH2) has a pH of 10.68. How many grams of methylamine are there in 100mL of the solution
consider a .7 L of a buffer composed of 0.4 M HClO and 0.5 NaClO? How many moles of strong base could this buffer withstand?
Pt(NH3)2cl2+h2o yields pt(NH3)2(H2o)cl+cl- has a rate that increases by a factor of 15 and a temeprature that inceases from 25 tp 50 degrees celsius what is the value of Ea?
The resulting mixture exerts a pressure of 745 mm Hg at 95 degress C. What was the mass of the original sample? (Write a balanced equation.)
What five items must you consider when selecting the size and range of the scale units for the x- and y-axis
Does the equilibrium constant increase or decrease as the tempearture increases or decreases
What is the percent ionization of a solution prepared by dissolving 0.0223 mol of chloroacetic acid, HC2H2O2Cl) in 1.80 L of water? For chloroacetic acid, Ka = 1.4 ? 10-3.
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