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

Explanation / Answer

Question 1)

Chalcone                --------------   D) 208.26 g/mol

Diethyl ether          -------------- A) 74.12 g/mol

Hydrogen peroxide -------------- F) 34.01 g/mol

Sodium hydroxide     ---------- B) 40.00 g/mol

Dimethyl sulfoxide ------------   C) 78.13 g/mol

Methanol            ------------------   E) 32.04 g/mol

Question 2)

Chalcone -------- A

Methanol -------- B

Sodium hydroxide    ------- C

Diethyl ether    --------   D

Hydrogen peroxide --------- E

Question 3)

1.Dimethyl sulfoxide

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