Answer:
[tex]783.2267[/tex] [tex]grams[/tex]
Step-by-step explanation:
[tex]CF_{4}[/tex]
First we find how many grams are in 1 mole of [tex]CF_{4}[/tex]
We look at the periodic table to see how many grams is 1 mole of carbon and it is 12.011 grams
Now we find how many grams are in 1 mole of Fluorine and the periodic table says 18.998 grams
But, if you look [tex]CF_{4}[/tex] has 4 moles of fluorine so we multiply 18.998 by 4
[tex]18.998*4=75.992[/tex]
Now we add the 1 mole of carbon and 4 mole of Flourine
[tex]12.011+75.992=88.003[/tex]
The question asked to find 8.9 moles of [tex]CF_{4}[/tex] so we multiply the number we just found by 8.9
[tex]88.003*8.9=783.2267[/tex]
I hope this helps
Answer:
If looking for sig figs then 780, but if not then 783.289
Step-by-step explanation:
If you convert the moles to grams you find the molar mass of CF4 which ends up being 88.01 and then times it by 8.9 to get the grams
