Question

How many grams of H2O will be produced if 750 grams of Fe are produced in the following unbalanced equation? (hint: balance equation first!)

Fe3O4 + H2 → Fe + H2O



Select one:

a.
322 g


b.
17.9 g


c.
241 g


d.
563 g

Answer 1

The correct answer is C. 241 g. The balanced equation is Fe3O4 + 8H2 → 3Fe + 4H2O. Therefore, 750 g of Fe would produce 750/3 = 250 g of H2O, which is 241 g when rounded to the nearest whole number.

can you give me the b mark?

Answer 2

The answer is A) 322G