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Chemistry 9 Online
OpenStudy (anonymous):

PLEASE HELP!!!!! I have been stuck on this question for half an hour, and only have one attempt left on my homework!! A student performs the experiment as described in the guide. A tablet is crushed and dissolved in 25.0 mL of 0.180 M NaOH The mixture is heated to near 100 oC for 15 minutes then cooled to room temperature. The mixtue is titrated to the phenolphthalein end point with 0.237 M HCl. The titration volume is 4.40. What is the mass of aspirin in grams?

OpenStudy (anonymous):

I have gotten 0.811g and can't decide between 0.4055g, 1.003g, or 0.5015g

OpenStudy (anonymous):

0.811g was the incorrect answer

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