Question

The number of molecules in 32 g of methane is:

(a) 3.0x1023 (b) 12.04x1023 (c) 6.02x1023 (d) 2.4x1023​

Answer 1

Option c

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Answer 2

Answer:

Explanation:

molecular weight of CH4 is =12+1×4= 16

number of moles=given mass /atomic mass×Na

=32/16×6.023×10^23

=2×6.023×10^23=12.046×10^23.

answer =12.04×10^23.

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