Acontainer holds 20.0 grams of neon gas. under the same conditions, how many grams of xenon would the container hold?

131 grams

Explanation:-

According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number of particles.

To calculate the moles, we use the equation:

Thus 1 mole of Xenon will occupy the same volume as 1 mole of Neon.

Mass of xenon=

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