Question

Fe2O3 + 3H2 → 2Fe + 3H2O

About how many grams of H2O will be produced if you have 45.00 moles of Fe2O3 in an excess amount of hydrogen gas (H2)?

Answer 1

one mole of fe2o3 gives 3 mole of water

one mole of water is equal to 18 gram then 3 mole of water is equal to 54 gram

one mole of fe2o3 gives 54 gram of H2O then 45 moles of fe2o3 gives 54 × 45 gram of H2O that is 2430 gram of water

MOLE CONCEPT