number of moles of O atom in 126 amu of HNO3
Answers
Answered by
6
Answer:
Here we have 126 AMU of HNO3,
Molar mass of HNO3 is 1+14+16x3 = 63amu
Number of molecules of HNO3 are = 126/63 = 2
Here we have 2 molecules
Each molecule have 3 atoms of oxygen.
So no. of oxygen atoms= 3x2 =6 atoms
No. Of moles = given particles/ avogadro number
No. of moles of oxygen = 6 / 6.022 x 10^23
No. of moles =9.96 x 10 ^-22
Explanation:
Similar questions