Question

Number of atoms in 4.25 gram of nh3 is approximately

Answer 1

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Answer 2

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→ Molar mass NH3 = 14+3 = 17g/mol

→ 4.25g = 4.25/17 = 0.25 mol NH3

→ 1mol = 6.022× 10²³ molecules

→ 0.25 mol = 0.25×6.022×10²³

→ Number of molecules = 1.51×10²³ molecules NH3.