The volume of a gas in discharge tube is `1.12 xx 10^(-7)` ml, at `0^(@)C` and 1 atm. The number of molecule of gas in the tube is-
A
`3.01 xx 10^(4)`
B
`3.01 xx 10^(15)`
C
`3.01 xx 10^(12)`
D
`3.01 xx 10^(16)`
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