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Consider the steps you followed to calculate the mass % concentration of vinegar and rationalize how will the following affect the calculated mass % concentration:
measured out 11 ml vinegar sample each time instead of 10 ml;
before titration, rinsed the buret with di water only without using naoh solution;
some naoh solution remained on the wall of flask and never reached the reaction mixture.
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Consider the steps you followed to calculate the mass % concentration of vinegar and rationalize how...
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