Explain what is the role of ferric chloride

Assignment Help Chemistry
Reference no: EM13246859

1. Why is acceptable to use a mixture of the alpha and beta anomers of D-(+)-mannose in this reaction? (i.e. why isn't it necessary to use either a pure alpha or the pure beta anomer?

2. What is the role of ferric chloride?

3. Why was the potassium carbonate added during the isolation of the product?

4. Why was the bulk of the acetone boiled off prior to the extractions with dichloromethane?

5. Why is it important that the reaction mixture was cooled to room temperature prior to the extractions with dichloromethane?

Reference no: EM13246859

Questions Cloud

Find the largest electrical output the enery plant delivers : water at TL= 30 degrees celsius is used as a low temperature reservoir for an energy plant, what is the largest electrical output the enery plant delivers
Determine the force exerted by horizontal rope on her arms : A 55.5-kg ice skater is moving at 4.08 m/s when she grabs the loose end of a rope, Determine the force exerted by the horizontal rope on her arms
Describe what is the molecular weight of a gas : What is the molecular weight of a gas if a 21.0 g sample has a pressure of 836mmhg at 25.0 degrees c in a 2.00L flask
What percentage of the initial stored energy remains : An initially charged capacitance discharges through a resistance. At one time constant, what percentage of the initial voltage reamins What percentage of the initial stored energy remains
Explain what is the role of ferric chloride : Why is acceptable to use a mixture of the alpha and beta anomers of D-(+)-mannose in this reaction? (i.e. why isn't it necessary to use either a pure alpha or the pure beta anomer
Design a low-pass filter that attenuates the noise : A measurement signal has a frequency less than 1 kHz, but there is unwanted noise at about 1 MHz. Design a low-pass filter that attenuates the noise to 1%. What is the effect on the measurement signal at its maximum of 1 kHz
Determine the acceleration of the rocks : Some sliding rocks approach the base of a hill with a speed of 15.0m/s . The hill rises at 42.0? above the horizontal, Find the acceleration of the rocks as they slide up the hill
Define the concentration of the filtered solution : After mixing, you filter it and find that the concentration of the filtered solution is 5ppm Cu2+. From the above scenario, calculate the mass of Cu2+ bound to the soil. Calculate the K(dis).
Find the thevenin and norton circuits for the sensor : an unknown sensor is investigated by connecting resistors across the output and measuring the current through them. When a resistance of 30 is connected the current through it is 0.5A. When the resistance is replaced by 20

Reviews

Write a Review

Chemistry Questions & Answers

  State concentration was dissolved in hcl

Type your question hereA 0.1390-g rock sample of unknown concentration was dissolved in HCl and diluted to 100.0 mL. Aliquots of 10.00 mL of this unknown solution were added to different volumes of a 2.08 ?g/mL Ca standard solution and diluted to ..

  What is the mass of the helium in the balloon

A helium-filled weather balloon has a volume of 2.4 × 102 L at 99 kPa pressure and a temperature of 0°C. What is the mass of the helium in the balloon?

  Compute the energy in mev released by the decay

the relevant masses for this decay, and calculate the energy (in MeV) released by the decay of one such atom. You can neglect the mass of the neutrino that is one of the decay products.

  Fructose is a molecular solid and does not ionize in water

Assume that fructose is a molecular solid and does not ionize when it dissolves in water.

  State what is the energy of the system

Consider a Hydrogen atom with the electron in the n = 6 shell. What is the energy of this system? (The magnitude of the ground state energy of the Hydrogen atom is 13.6 eV.)

  Find the unknown gas

A sample of neon effuses from a container in 79 seconds. The same amount of an unknown noble gas requires 161 seconds.

  What is the mass in grams of the lead

The water level in a graduated cylinder initially at 225 rises to 278 after a piece of lead is submerged. What is the mass in grams of the lead?

  State what is the alkalinity of the river

What is the alkalinity of the river, What concentration of acid, for example, HCl, would result in a pH of 7.5

  State debye-huckel limiting law to calculate the activity

Debye-Huckel limiting law to calculate the activity coefficients. Calculate the percentage difference between the a) and b) solubility products for each

  State compund z has a solubility limit

Compound Z has a solubility limit of 32.5 g/L in diethyl ether. Compund Z has a solubility limit od 2.5 g/L in water. You are given a 100 mL aqueous solution that contains 200 mL of compund Z. If you do three 33.3 mL extractions of Z using diethyl..

  Explain how these three ions can be separated

describe how these three ions can be separated by adding NaI solution. Which will precipitate out first and last? Please solve and show EVERY step of the solution

  Calculate the rate at each time interval

Calculate the rate at each time interval & average rate for the reaction and determine the rate of each time interval, and then calculate the average rate for the reaction in terms of [H 2 O].

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