Experimental Data and Results \"Include all work, units and write answers in sci

Question

Experimental Data and Results "Include all work, units and write answers in scientific notatior significant figures for full credit. Obtain a signature prior D. Titration of Citric Acid Trial 1 1. Mass of Co.9 2. Mol CsHsO7 3. Initial Volume NaOHO 30 m 4. Final Volume NaH 20.45 ml 5. Volume NaOH Used 2o. 6 ML 6. Instructor Approval of Endpoint 7. Mol NaOH 8. Mol H* 9. Mol H*/mol CsHsO7 Show all calculations Did the titration show that citric acid is triprotic? Why Check this box if all materials in your tray have been cleaned returned to their proper position, and all items in your drawer are Instructor Signature

Explanation / Answer

Sol:-

We can simply find the no. of moles by using the formula :

Number of moles = given mass (in g)/ gram molar mass

Given mass of C6H8O7 = 0.49g

and gram molar mass of C6H8O7 = 12×6 + 8×1 +7×16 = 72+8+112

= 192g

Therefore no.of moles of C6H8O7 = 0.49/192

= 2.55 moles

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