Last modified: Wed 12/31/1969 06:00:00 pm
CHEM 1314 Fall 2010 BCE

Oklahoma State University

This is BCE. It is OK to use your textbook or lecture notes from class, but if you can answers the questions without it that is OK too.

Do not press the RETURN or ENTER key while you are answering these questions. Your browser will interpret either the same as clicking on the Submit key.

Answer all of the questions below. If you do not know an answer enter CNA. However, it will help me the most if you answer each question with your best intuition/idea about what would be a reasonable answer.


First Name:

Last Name:

Laboratory Section:

Open the link to the simulation for the first part of this BCE. The simulation will open in a new window. Resize the window so you can interact with the simulation and see the BCE window.

Use the following steps to set up your reaction vessel.

1. Select the gas:

In the simulation, select methane (CH4) by clicking on the '1. Select Gas' tab on the left side of the simulation.

2. Balance the equation:

Enter the coefficients to balance the equation found at the top of the simulation window and click Submit to check your response.

3. Select the Amount of O2 and Hydrocarbon:

Use the slidebars next to the gas tank to prep the reaction vessel with 20 grams of oxygen, O2, and 10 grams of methane, CH4.

4. Start the Reaction:

Click on 'Start the Reaction' to mix the gases.

5. Amount of Products:

Look at 'Amounts of Products' to determine the moles and grams of each product formed.

Refer to the simulation, to complete the following reaction table.

Table I: Use units of grams

 
REACTANTS
REACTANTS
PRODUCTS
PRODUCTS
Exp.
CH4
2O2
--->
CO2
2H2O
Initial Amount
Change Amount
Final Amount
 

Table II: Use units of moles

 
REACTANTS
REACTANTS
PRODUCTS
PRODUCTS
Exp.
CH4
2O2
--->
CO2
2H2O
Initial Amount
Change Amount
Final Amount
 

 

In your experiment what is the limiting reagent and what is the reagent in excess? (A reagent in excess is a reactant that is not completely used up in a chemical reaction, a limiting reagent is a reactant that limits the amount of product formed in a chemical reaction.)

limiting reagent reagent in excess

 

Is there anything about the questions that you feel you do not understand? List your concerns/questions.

If there is one question you would like to have answered in lecture, what would that question be?