80.9k views
5 votes
I need help! how many moles are in 3.4*10^-7 grams of silicon dioxide, SiO2. I got 2.0^17 but I think it's wrong :(

User Rpd
by
8.1k points

1 Answer

4 votes
Molar mass SiO2 = 28 + 32 = 60

so moles sand = 3.4 x 10-7 / 60
User Pavan Katepalli
by
7.6k points