Question

calculate the number of atoms present in 9g of nitrogen​

Answer 1

Mass of nitogen molecules =42 g

Molar mass of nitogen molecules=42 g

Each nitrogen molecules contain 2 nitrogen atoms.

Moles of nitrogen molecules =

Molar mass

Mass

= 28/42 =1.5 moles

Number of atoms of nitrogen present in 42 grams of nitrogen gas =2×no. of moles× A =2×1.5×6.022×10

23 =1.8066×10

24atoms

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$MARK \: \: AS \: \: BRAINLIEST$