Explain typical solvents used for recrystallization

Assignment Help Chemistry
Reference no: EM13565276

The following are some typical solvents used for recrystallization and dissolution of various organic compounds. Give their structures (line drawings are acceptable) and their boiling points.

(a) methanol

(b) ethanol

(c) pentane

(d) 2-propanone

(e) acetic acid

(f) ethyl acetate

(g) dichloromethane (methylene chloride)

(h) dimethyl sulfoxide

Reference no: EM13565276

Questions Cloud

Explain thionyl chloride in the presence of pyridine : Draw the skeletal structure of the organic product that results from the reaction of 1-hexanol with thionyl chloride in the presence of pyridine.
How much work must external agent do to stretch same spring : When a 2.10-kg object is hungvertically on a certain light spring described by Hooke's law, the spring stretches 2.84 cm. What is the force constant of the spring?
Explain the 2-methyl-2-butanol forms a carbocation : 2-methyl-2-butanol reacts with HBr to form 2-bromo-2-methyl butane and water while butanol reacts with HBr to form 1-bromobutane and water. Give a detailed explanation as to why the 2-methyl-2-butanol forms a carbocation in the mechanism while but..
My riches make me poor : What is the meaning and the importance of the quote "My riches make me poor" in Ovid's Metamorphoses
Explain typical solvents used for recrystallization : The following are some typical solvents used for recrystallization and dissolution of various organic compounds. Give their structures (line drawings are acceptable) and their boiling points.
What is the focal length of the lens : A convex lens is held over a piece of paper outdoors on asunny day. When the paper is held 26 {\rm cm} below the lens, the sunlight is focused on the paper and the paperignites. What is the focal length of the lens?
How does montaignes concept of the renaissance : How does Montaigne's concept of the Renaissance man differ from that of Rabelais
What are the velocities of the two people after snowball : A 66.0 kg person throwsa 0.0400 kg snowball forwardwith a ground speed of 32.0 m/s. A second person, with a massof 59.0 kg, catches thesnowball. Both people are on skates. The first person is initiallymoving forward with a speed of2.00 m/s, and th..
Explain the wavelength of the second photon emitted : The atom then emits two photons: one of wavelength 3174 nm to reach an intermediate level, and a second to reach the ground state. What was the wavelength of the second photon emitted

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the partial pressure of nitrogen in air

What is the partial pressure of nitrogen in air at atmospheric pressure (1 atm)? Assume ideal behavior. Express your answer numerically in atmospheres.

  How many grams of potassium acetate to make buffer solution

How many grams of potassium acetate are needed to make the buffer solution. (Ka of acetic acid is 1.78 x 10^ -5)

  Determine a metal atom surrounded by the cube

Consider a metal atom surrounded by the cube- shaped arrangement of eight ligand atoms (Oh symmetry). 1. Derive the reducible representation for the 8 sigma-bonds.

  Determine the mass percentage of cadmium sulfide

If the sample reacted completely and produced 1931 mL of H2S hydrogen sulfide at 29.82 °C and 759.7 mm Hg, determine the mass percentage of Cadmium sulfide in the mixture?

  Explain how many grams of sodium formate and nacho2

How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.1 L of 0.20 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.82

  What was the final volume of water on the buret

A volume of water was delivered using a buret and experimentally determined to have a mass of 2.00-g. What was the final volume of water on the buret if the inital was 0.44-mL? [assume the density of water is 1.00g/mL]

  The rate of an enzyme-catalyzed reaction usually increases

The rate of an enzyme-catalyzed reaction usually increases with temperature, but then decreases after reaching the "optimal temperature."

  State name the organic molecules

Use IUPAC rules to draw and/or name the following organic molecules. (you can draw the carbon chains only with functional groups...)

  What is the ph of the solution

A buffer is made up 0.24 M propanoic acid, CH3CH2COOH, a weak monoprotic acid, and 0.17 M of sodium propanoate, CH3CH2COONa. What is the pH of the solution.

  Explain a stearic acid molecule consists of 18 carbon atoms

A stearic acid molecule consists of 18 carbon atoms linked together. Assuming that the thickness, t, of a monolayer is equal to the length of the stearic acid molecule, what is the size diameter of a carbon atom, s =t/18.

  Explain the oxidation number of cobalt

For [Co(en)(NH3)2Cl2]ClO4 identify the coordination number of cobalt, the coordination geometry for cobalt, the oxidation number of cobalt, the number of unpaired electrons

  Treatment of x with ozone follwed by zinc in aqueous acid

compound x has the formula c8h14.x reacts with one molar equivalent of hydrogen in the presence of a palladium catalyst

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd