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

  The volume of a sample of a gas at 273 degrees celsius is

the volume of a sample of a gas at 273 degrees celsius is 200.0 l. if the volume is decreased to 100.0 l at constant

  Cs2 of ten milligrams mixes with excess of cl2 gas the heat

cs2 of ten milligrams mixes with excess of cl2 gas the heat evolved is transferred without loss to 6.450 grams of h2o

  Calculate the final pressure of a gas

Calculate the final pressure of a gas if a 953-mL sample of the gas at 1.25 atm and 50.0 degrees Celsius is changed to 1.55 L at 75.0 degrees Celsius.Be sure to include units and correct significant figures

  Describe splitting pattern and the ratio

Carbon NMR has only the following peaks: 29.8, 36.1 and 206.8 ppm. Propose a structure of this compound and explain splitting pattern and the ratio

  Explain mol of potassium hydroxide is added to the buffer

A buffer initially contains 0.10 mol acetic acid and 0.13 mol of sodium acetate in 1.00 L. 0.02 mol of potassium hydroxide is added to the buffer

  Calculate the molar enthapy of vaporization of a substance

The molar enthapy of fusion for water is 6.008 kJ/mol. calculate the molar enthapy of vaporization of a substance if 0.652 mol of the substance absorbes 6.411 kJ when it melts.

  What is the molarity of the strontium ion

The average concentration of strontium ion in seawater is 8.00 mg of strontium ion per kg of seawater. What is the molarity of the strontium ion if the density of the seawater is 1.025 g/mL.

  What is the concentration of colution in parts of a million

A solution of sodium chloride contains 502 g NaCI in 900 grams of water. what is the concentration of the colution in parts of a million (ppm)? Round to the nearest tens place. don't forget the unit.

  What is the final temperature of the water and the metal

The molar heat capacities of Iron and Gold are 25.19 J/(mol*(*C) and 25.41 J/(mol*(*C) respectively. What is the final temperature of the water and the metal?

  Explain a certain temperature mol of ca(oh)2 dissolves

1 mol of Ca(OH)2 is placed in 2 L of water and stirred. At equilibrium, at a certain temperature, 0.0180 mol of Ca(OH)2 dissolves. What is Keq

  Computing the heat of reaction from heats of formation

Calculating the Heat of Reaction from Heats of formation Use the following information to find ^Hf of methanol [CH3OH(l)]. CH3OH(l) + 3/2 O2(g) CO2(g) + 2 H2O(g) (heat)H°

  Compute the vapor pressure above concentrated naoh

Calculate the vapor pressure above concentrated NaOH at 35.0 °C, given vapor pressure of H2Ois 42.2 mm Hg at 35.0 °C.

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