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Important information about 4 questions (L5)What is the main structural feature of the azo dyes that causes them to be colored compounds?
Methyl Orange is an acid-base indicator. In dilute solution at pH greater than 4.4, it is yellow.At pH = 3.2 the solution appears red. Draw a structure of the species that is formed at the lower pH of the acid proton adds to the azo nitrogen atom adjacent to the aromatic ring containing the -SO3 group. Why does the proton add to this particular nitrogen when two other nitrogen atoms are available in the molecule?
In the formation of diacetylferrocene, the product is always the one in which each ring is monoacetylated. Why is no diacetylferrocene produced in which both acetyl groups are on the same aromatic ring?
Ferrocene cannot be nitrated using the conventional HNO3-HzSO4 mixed acid conditions, even though nitration is an electrophilic aromaticsubstitution reaction. Explain.
A 787 mL gas sample at STP is compressed to a volume of 226 mL, and the temperature is increased to 29?C. What is the new pressure of the gas in Pa.
The formal charge on the P atom is zero and It is best described with three resonance structures.
Analysis of the products revealed two methylated sugars: 2,3,6-tri-O-methyl-D-glucose, 2,4-di-O-methyl-D-glucose and 2,3,4,6-tetra-O-methyl-D-glucose. The ratio of these sugars was 20:1:1. determine the structure of the polysaccharide?
A 43 kg person drinks 450. g of milk, which has a "caloric" value of approximately 3.0 kJ/g. If only 17% of the energy in milk is converted to mechanical work, how high (in meters) can the person climb based on this energy intake.
The dipole moment and the normal boiling point of acetaldehyde (CH3CHO) are 2.7 D and 293 K, respectively. The dipole moment and the normal boiling point of n-octane (C8H18) are 0 D and 298 K.
Chemical Reactions explained in this solution, 1. Some sulfuric acid is spilled on a lab bench. It can be neutralized by sprinkling sodium bicarbonate on it and then mopping up the resultant solution. The sodium bicarbonate reacts with sulfuric ac..
Determine what mass of titanium displaces 65.6mL of H 2 O at the temperature 25 degree Celsius if the density of titanium metal is 4.51 g/cm 3 at the temperature of 25 ° C .?
A particular brand of gasoline has a density of 0.737 g/mL. How many grams of this gasoline would fill a 15.6 gal tank?
During the course of an experiment, a 0.300 M NaCl solution with an initial volume of 25.0 ml is diluted to a total final volume of 26.0 ml. What is the concentration of NaCl in the final solution?
What would be the effect of performing your kinetics experiments at a lower temperature than the one you used?
Ethylene glycol, antifreeze, has a density of 1.11 g/cm^3.a. What is the mass, in grams, of 410 mL of ethylene glycol?
a sample of oxygen occupies 1.00 x 10^6 mL at 575 mm Hg is subjected to a pressure of 1.25 atm. What will the final volume of the sample be if the temperature is held Constant.
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