Procedure Adding 8 drops of Fe(NO3)3 and 8 drops of NH4NCS in 100 mL of water. S

Question

Procedure Adding 8 drops of Fe(NO3)3 and 8 drops of NH4NCS in 100 mL of water. Stir up the solution and make sure the reaction reach equilibrium. 1. 2. Divide solutions into eight proportions, use one as a reference to compare color. 3. Drop by drop adding the following chemicals (Fe(NO3)3, NH4NCS, SnCl2, Na HPO4NH,) to individual test tube with the equilibrium mixture until a noticeable color change. Record the observations in the data table. 4. Heat one test tube with bumsen burner and cool one test tube with ice water until a noticeable color change.

Explanation / Answer

1. The reaction moves forward i.e., the forward reaction is favorable since reactants are added to the equilibrium.

2. The disturbances applied are the addition of reactants i.e.,the concentration of the reactants chenges i.e., increases.

3. Since the reactants are added, their concentration in the mixture increase. Further reaction undergoes opposing the phenomenon of increase in concentration (reaction reduces reactants and increases products). Therefore, more amount of products are formed.

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