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Explain in detail the observed absorption maxima (from the UV-vis spectrum) for the following compounds:
( For reference, A=ebC--> Beer's law)
Please include effects of steric hindrance and conjugation on the observed absorption
1.nitrobenzene, max absorption=252 nm (e=8620)
2. 2-nitrotolunene, max absorption=250 nm (e=5950)
3. 2-isopropylnitrobenzene, max absorption=247 nm (e=3760)
4. 2-t-butylnitrobenzene, no peak in this region
How many milliliters of 0.200 M NaOH will be required to titrate 14.5 mL of 0.479 M H2SO4?
How much heat is required to warm 223 g of ice from -45.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
According to the data, what is the value of delta H for the reaction.
what is the balanced net ionic equation? AND what is the molarity of the tartaric acid solution?
What is the percent by mass of oxygen in a gaseous mixture whose molar composition is 0.500% CO2 and 99.500% air? The composition of air is 21% mole O2
Identify the substance produced in the liver that helps catalyze this reaction.
What will be the molarity of a compound (1 litre) with a molecular weight of 169 and purity as 41%.
Ammonia is among the top ten synthesized compounds. Its many uses include the manufacture of ammonium nitrate and other fertilizers.
Pinacol (2,3-dimethyl 2,3-butanediol) gives a mixture of pinacolone (3,3-dimethyl-2-butanone) and 2,3-dimethyl 1,3-butadiene by treating with acid.
A mixture of FeO and Fe2O3 with a mass of 10.0 g is converted to 7.43 g Fe of pure Fe metal. What are the amounts in grams of FeO and Fe2O3 in the original sample
one mole of silicon si has a mass of 28.086 g, and one mole of carbon has a mass of 12.011 g. what is the mass of one mole of silicon carbide ?
There are 2.2 mg of lead in exactly 500 g of a water sample. What would the concentration of lead be in parts per million.
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