Friday
March 24, 2017

Post a New Question

Posted by on Wednesday, December 12, 2012 at 6:33pm.

4 moles of Zinc reacted with an excess of hydrochloric acid. Calculate the grams, moles,and liters at stp of gas made.Please help!!!!!!!!

  • Chemistry - , Wednesday, December 12, 2012 at 6:44pm

    Zn + 2HCl ==> H2 + ZnCl2
    mols Zn = 4 from the problem.
    Using the coefficients in the balanced equation, convert mols Zn to mols H2.
    That's 4 mols Zn x (1 mol H2/1 mol Zn) = 4 mols H2.

    1 mol H2 occupies 22.4 L at STP; therefore, 4 mols will occupy 4 mols x 22.4 L/mol = ?

    grams = mols x molar mass = ?

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question