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How many molecules are there in 122 grams of NO2?
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15 votes
15 votes
How many molecules are there in 122 grams of NO2?

How many molecules are there in 122 grams of NO2?-example-1
User Omer
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1 Answer

11 votes
11 votes
Answer: 1.47×10^23

Step-by-step explanation
mass of NO2 = 122 g

Atomic mass of O= 16 g

Atomic mass of N = 14 g

Molecular mass of NO2 = 46 g

Number of molecules = 122 × 1/ 46 × 6.022 × 10^(23)

Number of molecules = 1.47 × 10^(23) molecules.
User Rneves
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