what is the number of moles of oxygen atom in 126 amu of HNO3
Answers
Answered by
42
Answer:
Molecular mass of HNO3 = 63 Amu
So no. of molecules in 126 Amu = 126 /63 = 2
No. of atoms of Oxygen atoms = 2 x 3 = 6
No. of moles of Oxygen atoms = 6 /6.023 ×10^23 = 9.96 x 10^ -24 moles
hope this helps you
Answered by
3
Answer:
6
Explanation:
63 amu of HNO3 → 3 moles of o-atom
126 amu of HNO3 → ?
⇒ 126 × 3 moles ÷ 63
= 6 moles
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