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Molecule X has an absorbance of 0.287 at 247nm when a 7.67 x 10^-5 M solution is measured in a 2.25 cm cell. What is the molar absorptivity of X?
Draw the structure of the cis and trans isomers of the compound you prepared from last question. Why did you obtain the trans isomer?
for a hydrohalogenatoin reaction if you use br is it calles hydrobromination? or if you use cl is it hydrochlorination?
Assume that the kinetic energy of a 1250 kg car moving at 115 km/h could be converted entirely into heat. What amount of water could be heated from 19 C to 48 C by the car's energy.
A 100.0 mL aliquot of 0.100 M weak base B (pKb = 5.000) was titrated with 1.00 M HClO4. Find the pH after 3.4 mL of acid is added. Find the pH after 11.0 mL of acid is added.
Place palmitic acid at the middle position. Cis/trans isometry is graded -it may help to draw hydrogen atoms associated with the carbon atoms of the double bond.
Why does bromine add faster to a disubstituted double bond than a monosubstituted double bond to produce dibromides
Which alkyl bromide reacts fastest with methanol. options: 2-Bromo-2-methylbutane 2-Bromopentane 1-Bromopentane 2,2-Dimethyl-1-bromopropane
0.1 g of Na2CO3 - K2CO3 powder mixture was reacted with excess HCl. According to the gas volumetric measurement, 20.4 cm^3 of CO2 was evolved at 25 degrees Celcius and 730 Hgmm pressure. Calculate the composition of the original mixture
How many moles of ammonia are produced when 20 moles of hydrogen react with 40 moles of nitrogen
Describe the difference between the following and list any particular advantage possessed by one over the other a)hydrogen and deuterium discharge lamps as sources for ultraviolet radiation
what mass of aspirin can be prepared by reacting 5.00 g if salicylic acid with an excess of acetic
What is the composition of this mixture on a mole percent basis? Show all calculations and report answer to correct number of significant figures
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