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1) For each of the following syntheses (number of steps shown in brackets), state what reagent(s) you would use (for each step), explain your choice of reagents, and comment on the required order of the synthetic steps where appropriate.
(i) CH2=CH-CH2-OH FROM CH2=CH-CHO (1 step)
(ii) 2-Nitrobenzoic acid from Methylbenzene (2 step)
(iii) Ethanoyl chloride from ethene (4 steps)
Xenon gas is released during a certain chemical reaction and pushes back the atmosphere with a change in volume of the vessel (it has a movable piston) from 2 to 20 Liters. Calculate the work done by this release of gas.
The solubility of KNO3 is 38 g/100 g H2O at 20 degrees Celsius and 1.50 times 100 g/100 g H2O at 70 degrees Celsius. A solution is prepared by mixing 45 g of KNO3 in 35 g H2O at 70 degrees Celsius. Will all of the potassium nitrate dissolve at 70 ..
Hypothetically, you have determined from TLC analysis of your final product that your reaction did not go to completion, and you have isolated a mixture of the two alkene isomers.
An aerosol can has an internal pressure of 3.85atm at 25 degrees celsius. What temperature is required to raise the pressure to 18.0atm
The energy required to break a single carbon-carbon bond is 348 kJ/mol. Calculate the minimum wavelength of light needed to break the C-C bond. Could UV lamps be used to break the C-C bond?
How many grams of dipotassium phthalate (242.3 g/mol) must be added to 700 mL of 0.175 M potassium hydrogen phthalate to give a buffer of pH 6.00?
Cerium is often used as a reducing agent. Although it is expensive, it has a high stabile and constant value of E^ o over a PH range from 0 to 7.
Arrange the following aqueous solutions in order of deceasing freezing points: 0.10 m KNO3,0.10 m BSCl2,0.10 m ethylene glycol [C2H4(OH)2,antifreeze], and 0.10 m Na3PO4. Explain.
What is the mass of a single weight (assume one step work) you need to put on a bike pump to take the air in the pump from 1 atmosphere to 9 atmospheres?
2.50 moles of cobr2 are introduced into a 2.00 liter flask at 0degrees and heated to a temp of 73 degree celcius. at
The following reaction is spontaneous only below 3000 K. What conclusions can be drawn regarding this reaction? A + B ® AB
The concepts of sensitivity and detection limit are often used interchangeably. Specify the difference between these two concepts.
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