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If you have 1 gram of (-) ethyl lactate and purify it with an enantiomeric excess of 85% yields, wihout any loss of material. How many grams of the (+) enantiomer were separated?
A specific brand of gourmet chocolate candy contains 7.00 g of dietary fat in each 22.7 g piece. How many kilograms of dietary fat are in a box containing 3.00 lb of candy? Express your answer numerically in kilograms.
a student mixed 5.00 ml of a nickel2 chloride solution with 5.00 ml of .100m sodium phosphate and a precipitate formed.
Write a net ionic equation for the reaction between aqueous solutions of ammonia and hydrofluoric acid.
The resulting solution has an osmotic pressure of 0.605 atm at 25 C. Assuming that the organic compound is a non-electrolyte, what is its molar mass
Several artificial nitrogenous bases, called base analogues, can be taken up by cells, converted to nucleotides, and incorporated into nucleic acids. They are often potent mutagens, and some are used in cancer chemotherapy.
assume that the company had introduced lean production at the beginning of the second quarter resulting in zero ending
A sample of neon is collected at 2.7 atm and 12.0 C. it has a volume of 2.25L.What would be the volume of this gas at STP?
What is the pH of the sodium phosphate buffer described in problem if 1 ml of 10M NaOH is added? What is the pH of 1 liter of water if 1ml of NaOH is added?
Consider the following equilibrium 2SO2 + O2 yields 2SO3 The equilibrium cannot be established when is/are placed in a 1.0L container
Consider the following mechanism: NO => N + O O + O3 => 2 O2 O2 + N => NO2 What is the role of O3
an experiment requires 44.0 g of ethylene glycol a liquid whose density is 1.114 gml. rather than weigh the sample on a
mercury nanometer contains 2 g of Ar. A burner heats it to Pext. at 760 torr. What is the Temperature of the gas in the bulb when the total volume is 3 L and H=76mm
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