Problems 1 51 0 Ml Of Phosphoric Acid Solution H3po4 Reacts With 13 9 Grams Of Barium Hydroxide Ba Oh 2 According 1 (25.11 KiB) Viewed 51 times
PROBLEMS: 1. 51.0 ml of phosphoric acid solution (H3PO4) reacts with 13.9 grams of barium hydroxide, Ba(OH)2, according to the following balanced equation. What is the molarity of phosphoric acid: 2 H3PO4 +3 Ba(OH)2 → Bay(PO4)2 + 6H₂O 2. A direct titration of 0.68311 grams sample of diprotic acid (H₂X) requires 37.45 ml of 0.1372 M NaOH solution. What is the experimental molecular weight of this organic acid: H₂X + 2 NaOH → Na₂X + 2H₂O
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
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!