Question

The weight of one litre of a diatomic gas (X2) at NTP is 1.42 grams. The weight of one atom of this gas is nearly

Answer 1

Answer:

2.6 × $10^{21}$ gm.

Explanation:

Here, 1 litre has weight 1.42 grams,

So, 22.4 litre will weigh (1 mole) = 1.42 × 22.4 = 31.8 gm.

Now, 1 Mole (6.02 × $10^{23}$ × 2 atoms) = 31.8 gm

So, Weight of 1 atom = 31.8 / 6.02 × $10^{23}$ × 2 = 2.6 × $10^{21}$ gm

Hence, weight of 1 atom will be 2.6 × $10^{21}$ gm.

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