# Grams,Moles, Grams/Mol, basic Q

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#### Maverick56

##### Full Member

I guess my problem is distinguishing/using the difference between gram units listed on the periodic table and the gram units listed in a problem. For example,

How many moles are in a 46g sample of Na?

So sodium's atomic weight is 23 amu. So within that 46 grams there are 2 moles of sodium?

2 moles means I have 12.022 x 10^23 Na atoms?

Atomic weight is not actually a weight but a mass standard compared to carbon atoms?

I know this is basic stuff, but my goal is to develop more of an intuitive feel for this.

#### image187

##### Full Member
10+ Year Member
I guess my problem is distinguishing/using the difference between gram units listed on the periodic table and the gram units listed in a problem. For example,

How many moles are in a 46g sample of Na?

So sodium's atomic weight is 23 amu. So within that 46 grams there are 2 moles of sodium?

2 moles means I have 12.022 x 10^23 Na atoms?

Atomic weight is not actually a weight but a mass standard compared to carbon atoms?

I know this is basic stuff, but my goal is to develop more of an intuitive feel for this.

Yup. just practice, practice, practice...

2+ Year Member