A 3.4842 g sample of a solid mixture containing benzoic acid (C,H,COOH, 122.123 g mol') was...

 

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A 3.4842 g sample of a solid mixture containing benzoic acid (C,H,COOH, 122.123 g mol·') was dissolved and titrated with strong base to a phenolphthalein endpoint. The acid in the sample consumed 41.36 mL of 0.2328M NaOH. Calculate the percent (wt/wt) benzoic acid in the sample and its uncertainty. Use the following information: The position of the liquid level in the buret can be estimated to ± 0.02 mL; remember that two buret readings must be made determine a final volume of delivered titrant. The uncertainty in the molarity of the titrant is + 0.0001. The balance used to weigh the sample can be read to + 0.0001 g. A 3.4842 g sample of a solid mixture containing benzoic acid (C,H,COOH, 122.123 g mol·') was dissolved and titrated with strong base to a phenolphthalein endpoint. The acid in the sample consumed 41.36 mL of 0.2328M NaOH. Calculate the percent (wt/wt) benzoic acid in the sample and its uncertainty. Use the following information: The position of the liquid level in the buret can be estimated to ± 0.02 mL; remember that two buret readings must be made determine a final volume of delivered titrant. The uncertainty in the molarity of the titrant is + 0.0001. The balance used to weigh the sample can be read to + 0.0001 g.

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Volume of NaOH Final volume initial volume Given that the volume measurement has uncertainity of 002 ... View the full answer