# Ethyl Acetate

1. Nov 21, 2015

### Sace Ver

1. The problem statement, all variables and given/known data

A bottle of nail polis remover contains approximately 2.5 mol of ethyl acetate (C4H8O2)
How many atoms are in the bottle?

2. Relevant equations
?

3. The attempt at a solution
Would there just be 14 atoms?

2. Nov 21, 2015

### JeremyG

Review the definition of the mole. Is there only one molecule of ethyl acetate in the entire bottle?

3. Nov 21, 2015

### Sace Ver

Would it be 1.02 x 10 25 atoms?

4. Nov 21, 2015

### Staff: Mentor

That's not what I got (but much better than the initial 14 atoms).

Where did this number came from?

5. Nov 21, 2015

### Sace Ver

N=nNA
N=(2.5mol)(6.02x1023)
N=1.5x1024mol

NC=(1.5x1024mol)(4)=6.0x1024
NNH=(1.5x1024mol)(8)=1.2x1025
NNO=(1.5x1024mol)(2)=3.0x1024

Edit by Borek: closed formatting tags.

Last edited by a moderator: Nov 22, 2015
6. Nov 21, 2015

### SteamKing

Staff Emeritus
To be sure, the units here are molecules of ethyl acetate.
It's hard to follow your calculations here. They seem to be shrinking.

Edit by Borek: corrected.

Each and every molecule of ethyl acetate has 4C + 8H + 2O = 14 atoms.

Wouldn't it be easier to multiply the number of atoms in each molecule of ethyl acetate by the number of molecules of ethyl acetate in the bottle?

Last edited by a moderator: Nov 22, 2015
7. Nov 21, 2015

### Sace Ver

14 multiplied by 1.5x1024 molecules?

8. Nov 21, 2015

### SteamKing

Staff Emeritus
More specifically, 14 atoms / ethyl acetate molecule times 1.5 × 1024 ethyl acetate molecules / bottle of nail polish remover = ?

9. Nov 21, 2015

### Sace Ver

2.1x1025atoms?

10. Nov 21, 2015

### SteamKing

Staff Emeritus
Yes.

11. Nov 22, 2015