If 5.50 mol of HCl and 3.00 mol of O2 react according to the following equation, how many grams of water will form? 4HCl+O2=2H20+2Cl2?

3 Answers

Relevance
  • GTB
    Lv 7
    2 months ago

    5.50/2 moles water formed

    • Login to reply the answers
  • 2 months ago

    4 HCl + O2 → 2 H2O + 2 Cl2

    5.50 moles of HCl would react completely with 5.50 x (1/4) = 1.375 moles of O2, but there is more O2 present than that, so O2 is in excess and HCl is the limiting reactant.

    (5.50 mol HCl) x (2 mol H2O / 4 mol HCl) x (18.01532 g/mol) = 49.5 g H2O

    • Login to reply the answers
  • david
    Lv 7
    2 months ago

    This is a limiting reatant problem

    the bal. eq. gives you a mole ratio of 4/1 .. so it should be obvious that HCl is the limiting reactant

      5.50 X 2/4  =  2.75 mole H2O will be formed

     ... now use the molar mass to change this to grams

     ... molar mass H2O  =  2.00 + 16.00  =  18.00

       18.00 X 2.75  =  ____  grams >>>  just use your calculator for the final answer

    • Login to reply the answers
Still have questions? Get your answers by asking now.