Answer to Question #100664 in General Chemistry for Piper

Question

For the decomposition reaction represented by the equation 2 CrF3 → 2 Cr + 3 F2, what is the theoretical yield of fluorine gas (in grams) when 14.4 moles of chromium (III) fluoride decomposes? (The molar mass of fluorine gas, F2, is 38.00 g/mol.)

Answer 1

14.4mole – 2mole

X – 3 mole

X=3*14.4=21.6mole

Mass (F­₂)=21.6mole*38g/mole=820.8g