This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
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Here are the answers to the remaining parts of question 2: b) iii) Name a suitable indicator which could be used in step 2. Phenolphthalein iv) State the colour change of the indicator in 2(b)(iii) during the experiment. The indicator changes from pink to colorless. c) State the role of the white tile in the experiment. The white tile is placed under the conical flask to make the color change of the indicator more visible and precise. d) Describe how the volume of diluted hydrochloric acid used in the experiment was determined. The volume of diluted hydrochloric acid was determined by reading the initial volume from the burette before starting the titration and then reading the final volume after the endpoint was reached. The difference between the final and initial readings gives the volume of acid used. e) i) Name the type of reaction which occurred during the experiment. Neutralization reaction ii) Write a balanced chemical equation for the reaction in 2(e)(i). Assuming the base used was sodium hydroxide: HCl(aq) + NaOH(aq) → NaCl(aq) + H_2O(l) f) Give one safety precaution which could be observed during the experiment. Wear safety goggles to protect eyes from chemical splashes. Last free one today — make it count tomorrow, or type /upgrade for unlimited.