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CALCULATING THE CONCENTRATION OF AN ACID IN A HOUSEHOLD SUBSTANCE…
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Based on these definitions of acids and bases, what decides which base is most suitable for my chosen acid?
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Research
Based on research, the best base for ascorbic acid is iodine
Which of these substances/ acids to choose, and why?
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Therefore, based on the minimisation of these variables and achieving results that are as accurate as possible, Vitamin C/ Ascorbic Acid is the best acid to choose, and Vitamin C Supplement Tablets are the best specific substance to use.
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Based on the availability and accessibility of necessities for these methods, evaporation cannot be done, as we do not have the apparatus required available to us, not enough reference material, and not enough time to carry out the practical. Therefore, it is an acid- base titration that should be used.
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Based on my understanding and research combined, the base most suited to my chosen acid is iodine.
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Based on the way an indicator works below, how can I choose the most suitable indicator for this experiment?
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By researching past practicals that used my chosen acid and base in a titration and which indicator was used, and matching up these indicators using a pH range chart, and applying the pH of my chosen substances, I came to the conclusion that starch indicator solution is the most suitable. The colour change observed with this indicator is from a colourless solution to a pale/bright blue solution.
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