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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c) (i) A suitable indicator is phenolphthalein. (ii) The color change of phenolphthalein during the experiment would be from pink to colorless (assuming a base was in the conical flask and acid was added from the burette). d) The role of the white tile is to make the color change of the indicator more visible and distinct, allowing for a precise determination of the endpoint. e) The volume of diluted hydrochloric acid used was determined by: 1. Recording the initial volume reading on the burette before starting the titration. 2. Recording the final volume reading on the burette when the endpoint (color change) was reached. 3. Calculating the difference between the final and initial readings to find the volume of acid delivered. f) The type of reaction which occurred during the experiment is a neutralization reaction. g) Assuming the base used was sodium hydroxide, the balanced chemical equation is: HCl(aq) + NaOH(aq) NaCl(aq) + H_2O(l) h) One safety precaution is to wear safety goggles to protect the eyes from chemical splashes. Send me the next one 📸