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`        no. of molecules and atoms in 54gm of H2O`
2 years ago

Avinash
1246 Points
```										No. of moles = wt/GMwt =54/18 = 3No. of atoms or moleules = 3 x Avagadro no. =3 mol x 6.022 x 1023mol-1 =18.066 x 1023 mol-1
```
2 years ago
vindhya
50 Points
```										will the no. of atoms and no. of molecules be same?please tell me Avinash sir
```
2 years ago
Avinash
1246 Points
```										Yes,no. of atoms and no.of molecules be same since it contains avagadro no of molecules or avagadro no of atoms that mutliplied with no. of moles. so the count will be equal
```
2 years ago
603 Points
```										no AVINASH sir is wrong , no of molecules are 3xNa and no, of atoms are 9xNa sir there seems to be some problem with you basics
```
2 years ago
vindhya
50 Points
```										avinash sir, please tell me, is prajwal kavad correct?
```
2 years ago
vindhya
50 Points
```										please tell me prajwal kavad, why is it that no. of atoms are 9 x Na ?kindly explain your answer, if you don't mind.
```
2 years ago
Avinash
1246 Points
```										Yes prajwal kavad is right. I’m giving answer for tri atoms and the giving the second reply instead in the thought process of calculation for mono atom.Vindhya, jst multiply (2 hydrogen atom + 1 oxygen atom) x total no. of moleculesNo. of moles = wt/GMwt =54/18 = 3No. of moleules = 3 x Avagadro no. =3 mol x 6.022 x 1023mol-1=18.066 x 1023No. of atoms = 3 x18.066 x 1023 = 54.198 x1023
```
2 years ago
vindhya
50 Points
```										thanks a lot to prajwal kavad  for correction and of course Avinash sir  for a good explanation.
```
2 years ago
603 Points
```										my pleasure
```
2 years ago
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