Lab7%20Report

Lab7%20Report - experiments to determine the color of HInd...

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Experiment 7- Products and Reactants Name___________________________ Report Sheet Partners________________________ ________________________________ For the reactions you performed in lab, write the relevant chemical equations and describe what you observed. You do not have to write net ionic equations; just explain what happens based on Le Chatelier’s Principle. Write the color of each species in solution under that term in the chemical reaction. Investigation 1: Chromate Solution (A) A solution of potassium chromate (B) Sulfuric acid was added to the solution of potassium chromate (C) Sodium hydroxide was added to the mixture above Investigation 2: Precipitation of Barium Chromate (A) Barium chloride was reacted with potassium chromate (B) Hydrochloric acid was added to the mixture above (C) Sulfuric acid was added to (A)
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(D) Nitric acid was added to (A) Investigation 3: Weak Acids and Bases Indicator 1: Methyl Orange (A) Starting with a solution of an acid-base indicator, use you observations of the next few
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Unformatted text preview: experiments to determine the color of HInd and Ind-H I n d Ind- + H + (B) Hydrochloric acid was added to methyl orange (C) Acetic acid was added to methyl orange (D) Sodium acetate was added to the above mixture (C) (E) Sodium hydroxide was added to methyl orange Indicator 2: Thymolphthalein (A) Starting with a solution of an acid-base indicator, use you observations of the next few experiments to determine the color of HInd and Ind-H I n d Ind- + H + (B) Hydrochloric acid was added to thymolphthalein (C) Ammonium hydroxide was added to thymolphthalein (D) Sodium hydroxide was added to thymolphthalein (E) Ammonium chloride was added to the mixture above (C) (F) Hydrochloric acid was added to the mixture above (C) Investigation 4: A Complex Ion Equilibrium (A) A solution of potassium thiocyanate (B) A solution of iron(III) nitrate (C) A reaction of the two solutions above Is the formation of iron thiocyanate exothermic or endothermic? How can you tell?...
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Lab7%20Report - experiments to determine the color of HInd...

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