7.5 Equilibrium Lab

Last updated over 3 years ago

10 questions

Remember to record responses while we work on this. It will be used for your PS1-6 learning target grade, questions 1-6. 

Questions 7- 10 are optional to increase a low LT score

Which statement(s) are true if you increase the concentration (amount) of N2 for this reversible reaction at equilibrium. (Select all that apply)

Lab Video- Note it's slightly different than our lab. We're starting at CaCl2  (calcium chloride) being added.  

Record your data and observations by clicking on Show your Work

Procedure notes: 

Step 1: 1/2 dropperful of cobalt chlorde (CoCl2)

Step 2: ~1/4 spoonful of calcium chloride CaCl2

Step 3: Add silver nitrate AgNO3 dropwise (~1/4 dropperful)

Step 4: 1 pipetful of water

7.5 Equilibrium Lab

7.5 Equilibrium Lab

Which statement(s) are true if you increase the concentration (amount) of N2 for this reversible reaction at equilibrium. (Select all that apply)

Record your data and observations by clicking on Show your Work

Which reaction (forward or reverse) is endothermic?

What are the reactants in the forward (exothermic) reaction?

What are the reactants in the reverse (endothermic) reaction?

When the reaction achieves equilibrium the rate of the forward reaction is the same as the rate of the reverse reaction. (both reactions are going at the same speed)

The concentration of the reactants equals (is the same as) the concentration of the products when a reaction is at equilibrium

Which statement(s) are true if you increase the concentration (amount) of N2 for this reversible reaction at equilibrium. (Select all that apply)

Record your data and observations by clicking on Show your Work

Which reaction (forward or reverse) is endothermic?

What is the ratio of moles of Cl-1 ions to CoCl4-2 based on the balanced chemical equation?

Use the mole ratio from question 1 to calculate the amount of moles CoCl4-2 that would form if we added 1 mole of Cl-1 to this reaction?

Use the molar mass of CoCl4-2 to calculate the mass of CoCl4-2 formed. (Hint: Add the atomic masses together to get your molar mass. Find your mass in grams by multiplying the moles from question 2 by the molar mass. Mols * Molar mass)

What are the reactants in the forward (exothermic) reaction?

What are the reactants in the reverse (endothermic) reaction?

When the reaction achieves equilibrium the rate of the forward reaction is the same as the rate of the reverse reaction. (both reactions are going at the same speed)

The concentration of the reactants equals (is the same as) the concentration of the products when a reaction is at equilibrium

What is the ratio of moles of Cl-1 ions to CoCl4-2 based on the balanced chemical equation?

Use the mole ratio from question 1 to calculate the amount of moles CoCl4-2 that would form if we added 1 mole of Cl-1 to this reaction?

Use the molar mass of CoCl4-2 to calculate the mass of CoCl4-2 formed. (Hint: Add the atomic masses together to get your molar mass. Find your mass in grams by multiplying the moles from question 2 by the molar mass. Mols * Molar mass)