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Bromine is larger than chlorine however the equilibrium constant indicates that a chloro substituent has a greater preference for the equitorial position than a bromo substituent does. Propose an explanation for this fact.
If 5.50 mol calcium carbide reacts with an excess of water, how many moles of acetylene will be produced.
The solubility of AgCl (s) in water at 25 degrees celsius is 1.33 X 10^-5 mol/L and its change in enthalpy of solution is 65.7 kJ/mol. What is its solubility at 54.8 degrees celsius
a certain protein was found to contain 0.639% zinc by mass. Determine the minimum molecular mass of the protein.
Polonium crystals have a simple cubic unit cell. If the edge length of a unit cell is 310. pm, what is the radius a polonium atom
If the anhydrous compound (AC) in the preceeding problem has a molar mass of 160g/mol, what are the water crystallization (X) and formula for the hydrate
the following standard gibbs energy of formation values in kJ/mol: CH4, 50.7; H2O, -228.6; CO2, -394.4 calculate the standard free energy change for the combustion of CH4
Draw the Lewis structures for the following compounds. 1) PBr3 Using VSEPR, what is the shape about the P. 2) N2H2 3) CH3OH Using VSEPR, what is the shape about the C and about the O? 4) CO2 Using VSEPR, what is the shape about the C? 5) C2H4
Acetone, the solvent in some nail polish removers, has a density of 0.791 g/mL. What is the volume of 20.4 g of acetone?
What is the volume of the gas in mL at each of the following pressures, if there is no change in temperature and amount of gas? 1) 0.40 atm 2) 2.00 atm 3) 2500 mm Hg
a 50.00-ml sample of 0.100 m koh is titrated with 0.152 m hno3. calculate the ph of the solution after 52.00 ml of hno3
What product(s) will be achieved when reacting 2,4-dimethylchlorobenzene with sodium hydroxide at 100 C
What concentration of CH3NH3Br is necessary to prepare a pH = 10.00 buffer solution assuming the base concentration is 0.69 M (Kb for CH3NH2 = 4.4 x 10-4). For this problem, include the correct units of M.
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