Question

Which of the following will weigh more?
A) 10g of Fe. B) 1.6 gram atom of N. C) 2×10^23atoms of C. D) 11.2dm³ of O2 at STP
​

Answer 1

1.5 ×N

A

1 mole of any gas at STP has volume =22.4 L

Here, volume =11.2 L

⟹1 mole=22.4 L

⟹

22.4

1

=1 L

⟹11.2 L=

22.4

11.2

=0.5 moles

One molecule of SO

2

is made up of 3 atoms.

∴ No.of atoms =3×0.5×N

A

=1.5×N

A

Answer 2

Answer:

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