Calculate the mass of a gas with a density of 0.0065 g/cm3 and volume of 260 cm3.

Mass=Density*Volume 
260 * 0.0065=1.69
Final
1.69g

There are numerous information's already given in the question. Based on these information's the answer to the question can be easily determined.
Density of the gas = 0.0065 g/cm^3
Volume of the gas = 260 cm^3
Then
Mass of the gas = Volume * density
                          = 0.0065 * 260 g
                          = 1.69 g
From the above deduction, we can conclude that the mass of the gas is 1.69 g. I hope the answer helps you.

Ais the correct answer

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