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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?
At 25 degree celcius, the density of a 50 percent by mass ethanol/water solution is 0.914 g per subic centimetre. Given that the partial molar volume of water in the solution is 17.4 cubic centimeter per mol.
Which of the intermolecular forces is the most important contributor to the high surface tension shown by water and What is the quantum of light called?
The molar enthalpy of fusion of solid silicon is 46.4 kJ mol-1, and the molar entropy of fusion is 27.6 J K-1 mol-1.
What is the difference in density of the air at the top and bottom of the room? (Hint: assume that the volume and pressure is the same, if you like, you can take the volume to be 1L and the pressure to be 1atm, but if you think carefully you may r..
Write as a superposition of 3 eigenstates, indicating the numerical value of each coefficient. Using the coefficients, demonstrate that is normalized.
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
For each molecule, draw the Lewis structure that satisfies the octet rule for that molecule and also draw the Lewis structure that minimizes formal charges for the molecule as well. For the Lewis structure that satisfies the octet rule
The only thing that is supplied to you is 1M Tris (pH 6.8) and 1M NaCl. You have full access to all the deionized H2O you may need. Plus 3 M HCl, 40 g/mol of NaOH pellets, and a pH meter.
The specific heat of silver is 0.235 J/g·K. Its melting point is 962°C, and its heat of fusion is 11.3 kJ/mol. What quantity of heat, in joules, is required to change 7.50 g of silver from solid at 25°C to liquid at 962°C?
What volume of 3.00M HCL in liters is needed to react completely (with nothing left over)
Carbon disulfide and carbon monoxide are produced when carbon is heated iwth sulfur dioxide. 5C9s) + 2SO2(g) --> CS2(l) +4CO9g)
Calculate the equilibrium constant, K, for this reaction at 298 K. (b) Will Delta G increase, decrease, or stay the same if the partial pressure of NO2 is increased? (c) Calculate Delta G^o at 298K if the partial pressure of NO2 and N2O4 are 0.40 atm..
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