Question

Which of the following have the same number of moles ?
[4 GMM H2 , 88 g CO2 , 89.6 L O2 , 4 g He]

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Answer 1

Answer:

For same number of molecules, number of moles should be same.

1 g of O

2

corresponds to

32

1

moles. 2g of SO

2

corresponds to

64

2

=

32

1

moles. Thus, they contain same number of molecules.

1 g of CO

2

corresponds to

44

1

moles. 1g of N

2

O corresponds to

44

1

moles. Thus, they contain same number of molecules.

112 ml of O

2

at STP corresponds to 0.005 moles. 224 ml of He at 0.5 atm and 273 K corresponds to 0.005 moles. Thus, they contain same number of molecules.

1 g of O

2

corresponds to

32

1

moles. 1g of O

3

corresponds to =

48

1

moles. Thus, they contain different number of molecules.