A mass of 0.457 g of solid carbon dioxide was vapourised into an evacuated gas syringe at r.t.p.

A small amount of inert gas was introduced into the gas syringe and the volume of the gas syringe was 334.5 cm³. The temperature was kept constant throughout.

How much inert gas was introduced into the gas syringe?

Source: 2017 HCI Prelims H2 Chemistry

Which of these options is the correct answer?

(A)   1.4 x 10‾² mol
(B)   3.3 x 10‾³ mol
(C)   3.5 x 10‾³ mol
(D)   4.3 x 10‾³ mol

The use of the Data Booklet is relevant to this question.

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