A flask contains 4.4g of CO(2) gas. Calc...

A flask contains 4.4g of `CO_(2)` gas. Calculate
(b) How many moles of `CO_(2)` gas does it contain?
(b)How many molecules of `CO_(2)` gas are present in the sample.
(c )How many atoms of oxygen are present in the given sample.( Atomic mass of C=12u, O=16)

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