Answer:
63,86 g O2
Explanation:
You will first find the molecular weight (MW) of C5H12 and O2 with help of a periodic table.
Then C= 12,011 , H=1,008 y O=15,999
So:
C5H12 = 12,011*5 + 1,008*12
MW =72,151 g/ mol C5H12
O2 = 15,999*2
MW = 31,998 g/ mol O2
Use the equation to know that 1 mol C5H12 equals 8 mol O2
Now you will start with the data of 18 grams of C5H12 and you obtain:
18 g C5H12 x 1 mol C5H12 x 8 mol O2 x 31,998 g O2 = 63,86 g O2 . 72,151 g C5H12 1 mol C5H12 1 mol O2
