Answer Happy

DATA SHEET: 1. Mass of empty Erlenmeyer flask 2. Mass of Erlenmeyer flask + acid sample 3. Mass of benzoic acid sample taken 4. Volume of NaOH solution taken 5.Molarity of NaOH solution 6. Total number of moles of NaOH taken 7. Volume of HC1 used in titration (in ml) 8. Volume of HC1 used in titration (in liters) 9.Molarity of HC1 solution 10. Moles of HCI used to neutralize excess NaOH 11. Moles of NaOH in excess 12. Moles of NaOH used to neutralize benzoic acid 13. Moles of benzoic acid in the sample 14. Experimental Molecular weight of benzoic acid 15. Percent Experimental Error Trial #1 89.7214 g 90.3631 g 0.02500 L 0.250 M 9.81 ml 0.100 M Trial #2 87.6931 g 88.3413 g 0.02500 L 0.250 M 9.51 ml 0.100 M