See bottom comments
Of Mass(grams)
gold(Au) 51.0616
lead(Pb) 33.1229
uranium(U) 51.0582
sodium(Na) 2.8698
Copper(Cu) 24.0600

Question

See bottom comments
Of              Mass(grams)
gold(Au)   51.0616
lead(Pb)    33.1229
uranium(U) 51.0582
sodium(Na) 2.8698
Copper(Cu) 24.0600

adamconner · Answer

divide mass in grams by each elements molar mass (from periodic table)

adamconner · Answer

so for example gold (Au): 51.0616/196.97 
which equals .2592 g/mole

anonymous · Answer

Okie dokie. Thank you. If I post what I get will you check them?

adamconner · Answer

yea sure :)

anonymous · Answer

Okay thank you!

anonymous · Answer

Mass(grams)           Molar Mass
gold(Au)   51.0616          .2592 g/mol
lead(Pb)    33.1229         .1599 g/mol
uranium(U) 51.0582         .2145 g/mol
sodium(Na) 2.8698          .1248 g/mol
Copper(Cu) 24.0600        .3786 g/mol

adamconner · Answer

yep! they are all correct

anonymous · Answer

Thanks can you help me with the other parts too? The next thing I have to find is Moles of each element.

adamconner · Answer

sorry i don't get what u want. what we just found is moles

anonymous · Answer

I'm just reading what the paper says to do. It's a chart looks like this.|dw:1382826355975:dw|