Which of the following gas samples would have the largest number of representative particles at stp? a. 0.520 l so3 b. 0.10 l xe c. 7.0 ln2 d. 12.0 l ne 12.0 l ne gas samples would have the largest number of representative particles at stp.

To answer this, we have to convert these values into number of moles by using the relation of moles and liters at STP. We do as follows:

A. 0.520 L SO3  ( 1 mol / 22.4 L) = 0.023 mol
B. 0.10 L Xe  ( 1 mol / 22.4 L) = 0.004 mol
C. 7.0 LN2  ( 1 mol / 22.4 L) = 0.31 mol
D. 12.0 L Ne  ( 1 mol / 22.4 L) = 0.54 mol

Therefore, option D is the answer.

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