Assignment
D Calculate the mass of 1 atom of silver Ag = 108)
1 molecule of carbon4oxide (Co2)
3 A litre (dm³) of Air contains .9.2*10^-4 mole of Argon)
. What is the mass of Argon in 1 dm3 of Air atomic
Mass of Argon (39.9)
A Prospector panning for gold in a river collect
15.0g of pure gold. How many gold of atoms are in this
quantities of Gold. Au=197
5) Calculate the number of mole and molecules in 35.og
of ethylene glycol
(HOCH2CH ₂014 )​