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Define an attempt at synthesizing a certain optically active compound resulted in a mixture of its enantiomers. Suppose the mixture had an observed specific rotation of 16.5°. If it is known that the specific rotation of the R enantiomer is -31.1°, find out the percentage of each isomer in the mixture.
Draw (A) a 1o alcohol with four carbons; (B) a 3o iodide with five carbons; (C) a 2o alcohol with a 1o chloride on three carbons; and (D) a methyl bromide.
Calculate the heat of formation of Magnesium oxide (MgO). Data given are: Mg(s) +2HCl (aq) ......> MgCl2 (aq) + H2 (g) ?H = 462 kJ/mol MgO(s) + 2HCl (aq) .......> MgCl2 (aq) + H2O (l) ?H
the temperature of a 22.0 g sample of material increases from 190.0 degree c to 42.0 degree c when it absorbs 5.00 kj
given the following equation6h2onbsp nbsp 6co2nbsp --gtnbsp c6h12o6nbsp nbsp 6o2nbspnbspnbspnbsp?h2803kjmolfind the
Calculate the van der waals correction terms to pressure and volume for Cl2 at STP. The values of the van der waals constants a and b are 6.49L^2-atm/mol^2 and 0.0562 L/mol,
A buffer solution is prepared by adding 15.00 g of sodium acetate ( NaC2H3O2) and 12.50 g of acetic acid to enough water to make 500 mL of solution.
Find the pH during the titration of 20.00mL of 0.1000M triethylmine, Kb=5.2x10^-4, with 0.1000M HCl solution after the addition of 10.00mL of titrant
If silicon, atomic number 14, combines with chlorine, atomic number 17 what is the most likely formula based on your knowledge of the periodic nature of the elements
Carbonic acid is a diprotic acid, H2CO3, with Ka1 = 4.3 x 10-7 and Ka2 = 4.8 x 10-11. Calculate Kb for the carbonate ion, CO32-
Suppose you placed 0.500 mol of COBr2 in a 2.00 liter flask and heated it to 73°C. After equilibrium was reached, suppose you added an additional 2.00 mol of CO to the flask at the same temperature
The natural abundance of c-14 in all living things is 1ppt. The half life of c-14 is 5,730 year (+/- 40 years). How old is something (+/-) that is found to have
An experiment produces 15.0 grams of hydrogen for every 71.0 grams of oxygen used. How many grams of oxygen will you need to produce 6.0 g of hydrogen
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