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The structure of biphenyl and the numbering scheme used in naming its derivatives are indicated below. What is the major product obtained on dinitration of biphenyl (HNO3, H2SO4)?
a. 2,4-Dinitrobiphenyl
b. 2,6-Dinitrobiphenyl
c. 3,5-Dinitrobiphenyl
d. 3,3'-Dinitrobiphenyl
e. 4,4'-Dinitrobiphenyl
Perform whatever separations and tests you think necessary to determine which ions are in fact present
Classify each of the following processes as spontaneous or nonspontaneous. I. H2O(l) --> H2O(g) T=25 deg C, vessel open to atmosphere with 50% relative humidity.
Examination of the product mixture revealed that only about half of the starting material had been consumed and practically no PhCOCHBrCH3 was present. Explain these observations and draw the product that did form in the reaction.
The Cd2 was displaced from EDTA by the addition of an excess of CN-. Titration of the newly freed EDTA required 23.5 mL of 0.0330 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?
what is the percent relative error? Please explain by showing work. Are these measurements more precise or more accurate? What is the purpose of repetition in measurements?
Put the following substances in correct order of increasing boiling point: Ar, F2, H3COH, Ir, SO2.
find the methylmercury CH3Hg concentration in fish at which regular consuption at 50g/day becomes unacceptable health risk. use epa reference dose for methylmercury
Determine the symmetry elements of objects with the same shape as the boundary surface of a) an s orbital, b) a p orbital c) a dxy orbital d)a dz2 orbital.
a sample of gas is collected over water at a temperature of 35.0c when the barometric pressure reading is 763 torr.
A chemist prepares a solution of potassium permanganate by measuring out 33.g of potassium permanganate into a 450ml volumetric flask and filling the flask to the mark with water. Calculate the molarity
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.60g of sodium carbonate is mixed with one containing 5.14 of silver nitrate.
Will a red blood cell undergo crenation, hemolysis, or no change in each of the following solutions
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