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Important information about Conceptual Organic chemistry
What chemical tests might be used to distinguish between pentanal and 2- pentanone; between benzyl alcohol and diphenylmethanol?
The haloform reaction using 12 and NaOH is referred to as the "iodoform" test for methyl ketones. The test also gives positive results for compounds containing the -CH(OH)CH3 group. This results from the oxidation of the alcohol to the methyl ketone in the first stage. Write a balanced equation for the conversion of C6H5CHOHCH3 to the methyl ketone in the presence of 12 and NaOH. Identify which species is being oxidized and which is being reduced.
If you were carrying out an industrial scale synthesis in which one step involved a haloform reaction to convert a methyl ketone into thecorresponding acid having one less carbon atom, would you use NaOH and C12, NaOH and Br2, or NaOH and 12 reagent? Give reasons for yourchoice.
Over the years the two isomers of azobenzene have been designated by various terms: cis-trans, syn-anti, and E-Z. Using each set of terms, assign them to the isomers of azobenzene.
Nitromethane has a relatively high boiling point of around 100 c. Which of the following intermolecular force is not present in pure liquid nitromethane and why.
Find the volume of oxygen - What volume of oxygen is needed to completely combust 2.07 L of methane gas
If 19.2 g of CO2 is produced in the reaction of C2H2 with O2 to form CO2 and H2O, how many grams of H2O are produced in this reaction.
Calculate the pressure in the flask in atmospheres and torr also If the sealed-tube manometer in had a height difference of 20.0 inches between the Hg levels?
how many grams of carbon are required to react with 1.5x10^25 atoms of hydrogen to form CH4
Arrange the four compounds below in order of increasing volatility.
Calculate the pH of a buffer that is 0.158 M HClO and 0.099 M NaClO. The Ka for HClO is 2.9 x 10-8
A 1.30 g sample of dry ice is added to a 760 mL flask containing nitrogen gas at a temperature of 25.0 degrees Celcius and a pressure of 735 mmHg. The dry ice is allowed to sublime.
Suppose a black-body chamber is constructed from 55.8 g (one mole) of iron and heated to 500 K. Classical theory and the observations of Dulong and Petit indicate that the total energy of vibration of iron atoms is 3RT per mole.
Find the lowest temperature of vaporization and the highest temperature when there is liquid left over and Determine the range of temperatures which could be used for this process.
An unknown metal X with a mass of 28 grams absorbs 58 J of heat. calculate the heat capacity if Its temperature raises from 31.1 °C to 39.9 °C.
A substance has a solubility of 350 ppm. How many grams of the substance are present in 1.0 L of a saturated solution.
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