Post a New Question


posted by .

0.042g of Magnesium was reacted with excess HCl at S.T.P.
A. Write the equation for the reaction
B. How many moles of Mg were used?
C. What volume of Hydrogen is produced in this reaction?_

  • science -

    Mg + 2HCl = MgCl2 + H2
    .042g Mg = .00173 mole Mg
    so, you get .00173 mol H2

    it will occupy .00173*22.4 = .0387L, or 38.7mL

Answer This Question

First Name
School Subject
Your Answer

Related Questions

More Related Questions

Post a New Question