Question 1 Match the following compounds with their correct molecular weights. C

Question

Question 1

Match the following compounds with their correct molecular weights.

Chalcone

Diethyl ether

Hydrogen peroxide

Sodium hydroxide

Dimethyl sulfoxide

Methanol

74.12 g/mol

40.00 g/mol

78.13 g/mol

208.26 g/mol

32.04 g/mol

34.01 g/mol

3 points   

Question 2

Match the following compounds with her correct hazard pictograms.

Methanol

Sodium hydroxide

hydrogen peroxide

Diethyl ether

Chalcone

3 points   

Question 3

Which of the following solvents is used to extract the product?

Dimethyl sulfoxide

Methylene chloride

Methanol

Diethyl ether

1 points   

Question 4

Which of the following chemicals is converted into the nucleophile in the epoxidation reaction?

Sodium hydroxide

Diethyl ether

Methanol

Hydrogen peroxide

1 points   

Question 5

What is the role of DMSO in the procedure?

Catalyst

Reactant

Oxidant

To remove Chalcones

      -       A.       B.       C.       D.       E.       F.   

Chalcone

Read Answer Items for Question 1       -       A.       B.       C.       D.       E.       F.   

Diethyl ether

Read Answer Items for Question 1       -       A.       B.       C.       D.       E.       F.   

Hydrogen peroxide

Read Answer Items for Question 1       -       A.       B.       C.       D.       E.       F.   

Sodium hydroxide

Read Answer Items for Question 1       -       A.       B.       C.       D.       E.       F.   

Dimethyl sulfoxide

Read Answer Items for Question 1       -       A.       B.       C.       D.       E.       F.   

Methanol

Read Answer Items for Question 1 Answer A.

74.12 g/mol

B.

40.00 g/mol

C.

78.13 g/mol

D.

208.26 g/mol

E.

32.04 g/mol

F.

34.01 g/mol

Explanation / Answer

1)

Chalcone C15H12O (D)

Diethyl ether C4H10O (A)

Hydrogen peroxide H2O2 (F)

Sodium hydroxide NaOH (B)

Dimethyl sulfoxide C2H6OS (C)

Methanol CH3OH (E)

2) there are no pictograms in the question

3)Diethyl ether most commonly called ether is widely used for organic extractions. Methylene chloride can also be used but is less common.

4) NaOH reacts with H2O2 (acid base reaction), turning H2O2 into a nucleophile (Na+H2O-)

5) To answer this, the experimental procedure you must follow is required. FOr the question, it can be deduced that is about an epoxidation, but more info is needed to know which reaction are you following.

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