Question

Which of the following molecule has highest
percentage of oxygen by mass?​

Answer 1

Explanation:

H

10

O

5

contains the greatest amount of oxygen by weight.

The molecular weight of C

5

H

10

O

5

is 5(12)+10(1)+5(16)=150 g/mol.

The weight percent of oxygen is

150

5(16)

×100=53.3 %

For C

3

H

6

O

5

Cl, the weight percent of oxygen is

3(12)+6(1)+5(16)+35.5

5(16)

×100=50.8%

For C

3

H

6

O

2

, the weight percent of oxygen is

3(12)+6(1)+2(16)

2(16)

×100=43.2 %

For, C

4

H

8

O

3

the weight percent of oxygen is

4(12)+8(1)+3(16)

3(16)

×100=46.2 %

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