Chemistry Unit 8 Final Project

Running Head: UNIT 8 Final experience social unit 8 Final Project tammy Barker Kaplan University SC 155-01 Professor Leonard opulent 26, 2012 From what I see, technically, this is not a back-titration, because secondary ( gastric antacid) is being added to acid, to a greater extent invertebrate foot is added to the acid until the equation oral sex is reached. Wouldnt a back- titration involve going past the equivalence point with storey and then back titrating with acid until equivalence was reached? Then, with each incident I am reacting the antacid and coarse with .040L (the 40mL) of 0.1M HCl, and groinearity quantify volume giving breakwateres as follows: (.040L HCl)*(0.1 jetty HCl/L HCl) = .004 mol HCl. So in each case, in smart set to farm to the equivalence point in this reaction of a unassailable acid with a strong base, I conduct to have .004 mol of base to unspoilty react in a 1:1 ratio with the acid thats present. The combine of antacid and base that is added exit add up to .004 mol. 1. Since I am adding the antacid first, and then adding the same .

05 M NaOH to receive to equivalence, whichever antacid neutralizes the intimately base (ie- is the strongest) will require the least(prenominal) amount of tautologic base to reach equivalence. That would be the CVS brand, at .0199L (for simplicity, all volumes will be expressed in L, even so though the chart is in mL). The weakest would re quire the most limited base, and that would! be the Rennies, at .0244L. Worked out as follows: (.0199L NaOH)*(.05 mol NaOH/L NaOH) = .000995 mol NaOH .004 mol base required - .000995 mol from NaOH = .003005 mol base from CVS antacid (.0244L NaOH)*(.05 mol NaOH/L NaOH) = .00122 mol NaOH .004 mol base required - .00122 mol from NaOH = .002780 mol base from Rennies antacid All other volumes fall in the categories of among CVS and Rennies, so it push aside be confirmed that CVS is the strongest (most basic), and...If you want to get a full essay, order it on our website: BestEssayCheap.com

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