Question

54. What is the mass of carbon dioxide which contains the same
number of molecules as are contained in 40 g of oxygen?​

Answer 1

Answer:

Molar mass of carbon dioxide =12+2×16=44 g

Molar mass of O

2

=2×16=32 g

Number of molecules in 32 g oxygen = N

A

Number of molecules in 40 g oxygen =

32

40

×N

A

Given: molecules in 40 g oxygen = molecules of m g carbon dioxide

44

m

×N

A

=

32

40

×N

A

44

m

=

32

40

m=55 g

Explanation:

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Answer 2

Explanation:

co{2} = 12 + 16×2 = 12+32 = 44gm

the answer is 55 gm.