Question

Estimating the Acid Content of a Son Drink Lab Worksheet Name: Section: 1. Complete the Data Table below for each of your titrations Titration 1 Titration 2 Molarity NaOH 0.0970 0.0970 Starting Volume (mL) 0.05 0.15 Final Volume (ml) 28.10 28.20 Net Volume NaOH (ml) 23.05 08.05 Net Volume NaOH(L) 10.02Yos 0.02805 Titration 3 0.0970 0.00 28.50 28.50 -0.0285 2. Using the data for Titration #1, show how to calculate the a) moles of NaOH needed to neutralize the citric acid in the 100-ml sample of Mountain Dew. QUADJADUDULLA SUA 0.0010 0.0 2 yos = 2.740 mal b) moles of citric acid in the 100-ml sample of Mountain Dew mov, emava c) grams of citric acid contained in 100 mL of Mountain Dew. (0.0970 v0.0 2x05 ) = (ma role ma= = 0.0272m (0.0278090o) 22. 7A x(0-3 mol (2.72 103 x192.724) € 0.5239 3. A 12-ounce can of Mountain Dew contains approximately 355 ml. Based on your calculations in question 2, how many grams of citric acid are ingested by drinking one can of Mountain Dew? 100ML = 0.5139 atacand (355% 0.5d3) de 100 € 1.85665 grams If you performed more titrations, what is the average mass of citric acid found in 100 mL of Mountain Dew? (Or, you could list the results from several other students.) 5. Look back at step 9 of the procedure. Why do we use a faint but persistent change in the color of the solution to mark the completion of the neutralization reaction? Why is it wrong to add NaOH is marked until the reaction acquires a deep and intense color? The completion of the reaction the solution because that denotes the charge of pH of the by the appereance of the first sign of change of color of ble tror into baste range. It mare anant of MaoH f added get deep intense coloration, then that would be happen when excess Naget added and the pH of neutralise the ant, of and we would been dues estimating the ant, of 164 Present in the the Perution have macement of materie de un model to soution
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