Some Basic Concepts Of Chemistry Question 69

Question: If 224 mL of a triatomic gas has a mass of 1 g at 273K and 1 atmospheric pressure then the mass of one atom is

Options:

A) 8.30×1023g

B) 2.08×1023g

C) 5.53×1023g

D) 6.24×1023g

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Answer:

Correct Answer: C

Solution:

[c] The conditions given are standard conditions 224 mL has mass = 1 g; 22400 mL will have mass = 100g. This is mol. wt of gas 6.023×1023 molecules have 3×6.023×1023 , atoms since gas is triatomic

weight of one atom =1003×6.023×1023=5.5×1023g



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