I need help with finding moles
Posted: Thu Jul 07, 2022 1:52 pm
I need help with finding moles
Name 1. Unknown vinegar number Results and Discussion - Experiment 22-Acids and Bases: Analysis For an extension to this experiment, see Activity 35, Part C A. Analysis of vinegar 2. 4 3. Mass of flask +5.00 mL of vinegar Mass of 5.00 mL of vinegar 3 Density of vinegar Molarity of sodium hydroxide solution Titrations flask 11 5. 6. Mass of flask 7. Final buret reading 8. Initial buret reading 9. Volume of NaOH soln. 10 Moles of NaOH (31.997 gled) 11. Moles of acetic acid 12 Molarity of acetic acid 13. 16. Date Average molarity of acetic acid in vinegar 14. Deviation of each 30.1mL 0.3mL 29.8mL molarity from average 15. Average deviation of molarity (see Expt. 4) Mass percent of acetic acid in vinegar (show calculations below) Lab Section flask 2 29.9mL 0.6mL 29.3mL 269 122,29 g 125.20g 2.91g 0.97g/mL flask 3 30.2mL 0.5mL 29.7ML
M = mass (volume a molar mass) 262 5. Color chart of indicators in 0.01 M HCl, pH 7 buffer, 0.01 M NaOH phenolphthalein methyl orange bromothymol blue red cabbage extract 0.01 MHC Dark Pink Slightly dank moles Brande indigo blue V-DICT purple 1. Mass of flask + KHP 2. Mass of flask 3. Mass of KHP 4Moles of KHP B. Standardization of sodium hydroxide solution. flask 1 pH 7 buffer milky light grange grange green 5. Final buret reading 6. Initial buret reading 7. Volume of NaOH soln 8. Molarity of NaOH soln 9. Average molarity of NaOH solution (Record als in next 3 experiments) 123.219 121.889 1.199 flask 2 10. Deviation from average 11. Average deviation of molarity (see Expt. 4) 0.01 MNOH Park Pink Ovange indigo blue Violet purple 103.52g 167.329 1.22₂ 22.2mL 0.65ml 0.8mL 21.55mL 21-6mL flask 3 69.149 67.939 1.219 22.4mL 22.9mL 0.4L 22,5mL 'KHP stands for potassium hydrogen phthalate, 264.22 gol, not potassium hydroges phosphous
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M = mass (volume a molar mass) 262 5. Color chart of indicators in 0.01 M HCl, pH 7 buffer, 0.01 M NaOH phenolphthalein methyl orange bromothymol blue red cabbage extract 0.01 MHC Dark Pink Slightly dank moles Brande indigo blue V-DICT purple 1. Mass of flask + KHP 2. Mass of flask 3. Mass of KHP 4Moles of KHP B. Standardization of sodium hydroxide solution. flask 1 pH 7 buffer milky light grange grange green 5. Final buret reading 6. Initial buret reading 7. Volume of NaOH soln 8. Molarity of NaOH soln 9. Average molarity of NaOH solution (Record als in next 3 experiments) 123.219 121.889 1.199 flask 2 10. Deviation from average 11. Average deviation of molarity (see Expt. 4) 0.01 MNOH Park Pink Ovange indigo blue Violet purple 103.52g 167.329 1.22₂ 22.2mL 0.65ml 0.8mL 21.55mL 21-6mL flask 3 69.149 67.939 1.219 22.4mL 22.9mL 0.4L 22,5mL 'KHP stands for potassium hydrogen phthalate, 264.22 gol, not potassium hydroges phosphous