Question

Experiment 15 Prelab - Protected View - Saved to this PC Search mesign Layout References Mailings Review View Help the Internet can contain viruses. Unless you need to edit it's safer to stay in Protected View Enable Editing Pre-Laboratory Assignment Lab 15 Exploring equilibrium 1. True or False At equilibrium, no more reactants are transformed into products. If false, rewrite the statement so that it correctly describes the nature of chemical equilibrium 2. True or False At equilibrium, the concentrations of reactants and products are equal. Iffalse, rewrite the statement so that it correctly describes the nature of chemical equilibrium 3. Paper coated with cobalt chloride is sold commercially as moisture sensitive test strips to estimate relative humidity levels between 20 and 80 percent in air. The following reversible reaction take place with water CoCl(s) +H-Og) SCOCI, 6H 0(s) Blue Pink a What color do you think the paper would be when the humidity is low (20%)? What color will it be when the humidity is high (80%)? Explain b. The test strips come with a color chart to estimate intermediate humidity levels Predict the intermediate color that might be observed with the humadity is about 50%. State your reasoning 4. The effect of adding more reactant to a system at equilibrium is often explained or predicted using LeChatelier's principle. Look up this principle in a textbook or online and restate it here to explain the color change predicted in Question 3a at high humidity o e

Answer 1

1. The given statement is true. At equilibrium, the rate of forward and reverse reaction are equal. This indicate that there is no further chnage in the concentration of reactant as well as product thus, it can be said that at equlibrium, no more reactant converts into product.