185,605 views
8 votes
8 votes
What mass of iron is contained in 86.6 grams of chalcopyrite, CuFeS2?

User Dylan Meador
by
2.9k points

1 Answer

16 votes
16 votes

Answer:

26.428 gm

Step-by-step explanation:

molecular mass of CuFeS2 = 63.5+(2*32)+56 = 183.5 gm

Now we apply unitary method,

183.5 gm Chalcopyrite contains 56 gm Fe

∴ 86.6 gm Chalcopyrite contains
(56)/(183.5) X 86.6

= 26.428 gm Fe

User Neil Baldwin
by
3.5k points