Hydrogen sulfide gas may be prepared in the laboratory by reacting aqueous hydrochloric acid with solid iron (II) sulfide.

Chapter 12                                                                   Name………………………………..

Stoichiometry V (mass-volume relationships)

 

  1. Hydrogen sulfide gas may be prepared in the laboratory by reacting aqueous hydrochloric acid with solid iron (II) sulfide.

 

HCl(aq) + FeS(s) → H2S(g) + FeCl2(s)

 

  1.  
    1. How many grams of iron (II) sulfide would be needed to produce 15 L of hydrogen sulfide at STP?

 

 

 

 

 

  1.  
    1. How many grams of iron (II) chloride would be produced if 2.4 L of hydrogen sulfide gas was produced at STP?

 

 

 

 

 

 

  1. When hydrogen sulfide (H2S) reacts with oxygen gas, two different reactions may occur:

 

1.        2H2S(g) + O2(g) → 2H2O(l) + 2S(s)

2.        2H2S(g) + 3O2(g) → 2H2O(l) + 2SO2(g)

 

  1.  
    1. In reaction #1, how many liters of hydrogen sulfide gas will react with 100.0 g of oxygen gas at STP?

 

 

 

 

 

 

  1.  
    1. In reaction #2, how many liters of hydrogen sulfide gas will react with 100.0 g of oxygen gas at STP?

 

  1.  
    1. In reaction #1, how many grams of solid sulfur will be produced if 2.54 L of hydrogen sulfide are used at STP?

 

  1.  
    1. In reaction #2, how many grams of sulfur dioxide gas will be produced if 4.92 L of hydrogen sulfide are used at STP?

 

  1. When solid magnesium metal burns in air, it reacts with both the oxygen gas and nitrogen gas in the air forming solid magnesium oxide and magnesium nitride.

 

  1. _________Mg(s) + _________O2(g) → _________ _________

 

  1. __________ Mg(s) + _________ N2(g) → _________ _________

 

  1.  
    1. predict the products and complete the balanced equations for reactions 1&2 above

 

  1.  
    1. If 20.0 L of oxygen are used in reaction #1 at STP, how many grams of magnesium oxide will be produced?

 

 

 

 

 

 

  1.  
    1.  If 42.0 L of oxygen gas are used in reaction #2 at STP, how many grams of magnesium nitride will be produced?

 

 

 

 

 

 

 

 

 

 

  1. How many liters of nitrogen gas can be produced by the decomposition of 50.0 g of ammonium nitrite at STP?

 

NH4NO2(s) → N2(g) + 2H2O(l)

 

 

 

 

 

 

  1. Solid copper metal can be formed by reacting hydrogen gas with solid copper (II) oxide

 

CuO(s) + H2(g) → Cu(s) + H2O(l)

 

 

  1.  
    1. how many liters of hydrogen gas are needed to completely react with 45 g of copper (II) oxide at STP?

 

 

 

 

 

 

  1.  
    1. how many grams of copper metal are formed from 34.25 L of hydrogen gas at STP?

 

 

 

 

 

 

  1.  
    1. how many moles of water will be formed from 25 L of hydrogen gas

 

  1. How many liters of oxygen gas can be obtained from the decomposition of 500.0g of potassium chlorate at STP? Begin with a balanced equation.

 

 

 

 

 

 

 

 

 

 

 

  1. How many liters of carbon dioxide gas will be produced from the complete combustion of 5.8 grams of liquid octane (C8H18) at STP? Begin with a balanced equation.

 

 

 

 

 

 

 

 

About these ads

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

Follow

Get every new post delivered to your Inbox.

%d bloggers like this: