4-5 :  Magnesium and HCl

  1. If 1.0 mol of Mg reacts with 3.0 mol of HCl, how many moles of gas will be produced?
    1. 0.5mol
    2. 1.0mol
    3. 2.0mol
    4. 3.0mol
  2. How many moles of gas will be produced from 2.43g of Mg?
    1. 0.05mol
    2. 0.08mol
    3. 1.0mol
    4. 2.0mol
  3. How many grams of gas will be formed if 0.243g of Mg is dissolved completely in the HCl solution?
    1. 0.020g
    2. 0.030g
    3. 0.050g
    4. 0.080g
  4. How many moles of gas will be formed if it takes 20.0ml of 0.1M HCl to dissolve all the Mg?
    1. 0.1mol
    2. 0.01mol
    3. 0.002mol
    4. 0.001mol
  5. What is the volume of the gas if 20.0ml of 0.1M HCl is used to dissolve all the Mg?
    1. 2.24L
    2. 0.224L
    3. 0.0224L
    4. 0.0448L