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Question- The α-phenylethylamine recovered from the hydrogen tartrate salt that recrytallizes as needles have been found to have a specific rotation of -20°. What is the percent composition of this mixture (+) and (-) enantiomers.
Please explain above problem in step by step manner so I can easily understand it
If the emitted green light corresponds to an electron dropping from that excited state back down to the ground state, what is the energy spacing (in aJ) between the highest occupied and lowest unoccupied orbitals. The element used is Thallium.
Problem- Using standard potentials calculates the standard cell potentials and the equilibrium constants for the following reactions:
an equilibrium mixture of pcl5g pcl3g and cl2g has partial pressures of 217.0 torr 13.2 torr and 13.2 torr
Assume that the heat required for the vaporization of the alcohol comes only from the aluminum block and that the alcohol vaporizes at 25. Suppose that 1.15 of rubbing alcohol evaporates from a 65.0 aluminum block.
Calculate the pH of a solution formed by mixing 100.0 mL of 0.20 M HClO with 200.0 mL of 0.30 M KClO. The Ka for HClO is 2.9 × 10-8.
Given that the partition coefficient for a solute is K in a water-ether solvent extraction system, is it more effective to do one extraction with V mL of ether or three extractions with V/3 mL of ether
explain how you would maximize the yield of the corresponding Fischer esterification product while keeping costs down? Explain what issue(s) might occur if you tried to prepare an ester in the lab using trans-esterification?
What is the pH of the solution resulting from the addition of 25.0 mL of .01M NaOH solution to 40.0 mL of .01M acetic acid
explain how many origins of replication must the cells contain. Explain what is the average distance, in kilobase pairs between these origins
Concerns over the harmful effects of chlorofluorocarbon on stratospheric ozone motivated a search for new refrigerants. One alternative was 2,2-dichloro-1,1-trifluoroethane (''refrigerant 123''). Estimate the temperature change that would accompany..
Explain how the mass of a single atom in an element (jn amu), the mass of one mole of atoms of that element
one of the lines in the emission spectrum of sodim has a wavelength of 590 nm. what is the frequeuncy of this line?
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