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mars1129 [50]
3 years ago
11

Show the reaction sequences that explain these transformations

Chemistry
1 answer:
sineoko [7]3 years ago
6 0
I don't know because your question is very unclear
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In your discussion consider a SN2 reaction mechanism concept. Propose a modification of experimental procedure that would improv
Hitman42 [59]

Answer:

Here's what I get  

Explanation:

You may have done a Williamson synthesis of guaifenesin by reacting guaiacol with 3-chloropropane-1,2-diol.

A. Mechanism

Step 1

NaOH converts guaiacol into a phenoxide ion.

Step 2

The phenoxide acts as the nucleophile in an SN2 reaction to displace the Cl from the alkyl halide.

B. Improve the yield

You probably carried out the reaction in ethanol solution — a polar protic solvent.

You might try doing the reaction in a polar aprotic solvent— perhaps DMSO.

A polar aprotic solvent does not hydrogen bond to nucleophiles, so they become stronger.

C. Another method of ether synthesis —dehydration of alcohols

Sulfuric acid catalyzes the conversion of primary alcohols to ethers.

This is also a nucleophilic displacement reaction.

Protonation of the OH converts it into a better leaving group.

Attack by a second molecule of alcohol forms the protonated ether.

A molecule of water then removes the proton.

6 0
3 years ago
Kepler’s investigations of the movement of the planets explained which of the following?
morpeh [17]

Answer:

The earth‘s orbit

Explanation:

8 0
3 years ago
What is the number of moles of solute in a 0.3 molal solution containing 0.10 kg of solvent? Don't forget the unit.
timurjin [86]
Molality is one way of expressing concentration for solutions. It has units of moles of solute per kg of solvent. From the given values, we easily calculate for the moles of solute by multiplying the mass of solvent to the molality. We do as follows:

moles solute = 0.3 (10) = 3 mol solute


5 0
3 years ago
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0.200 mol of nitric acid reacts with copper (II) oxide. A mass of 15.3g of copper (II) nitrate is produced.
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Answer:

the percentage yield of Cu(NO3) 2 is 40%

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9.0 grams will produce 11 L of hydrogen
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3 years ago
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