Answer:
90.126g
Explanation:
I am going to assume that the equation is supposed to say SiO2.
We want to calculate the number of grams in 1.50 moles of SiO2.
First we must find the molecular mass of SiO2
Looking at a periodic table, the mass of Silicon(Si) is 28.086g and the mass of Oxygen(O) is 15.999g
Using this, the mass of SiO2 would be 28.086 + 15.999(2) = 60.084g
Now we can use dimensional analysis to find the number of grams in 1.50 moles of SiO2
The table created should look something like [tex]\frac{1.50molSiO_2}{}*\frac{60.084g}{1molSiO2}[/tex]
the molSiO2 cancel out and we get
[tex]1.5*\frac{60.085g}{1}[/tex] = 90.126g
So there are 90.126g of SiO2 in 2 moles of SiO2
