Discussion: General Chemistry Titrations Lab 5 Report

Discussion: General Chemistry Titrations Lab 5 Report ORDER NOW FOR CUSTOMIZED AND ORIGINAL ESSAY PAPERS ON Discussion: General Chemistry Titrations Lab 5 Report Hi, Can you do the report for this experiment? and I upload the all file. Discussion: General Chemistry Titrations Lab 5 Report Completed individually. In your discussion you should make a conclusion and then explain how your experimental results and observations support your conclusion. The points below should help you identify the information you have available from this experiment to support your conclusion. Submit completed lab report by the due date. Be sure to include: Based upon the introduction in your lab manual, what are you trying to find with your experiment? Based upon the purpose of your experiment, what claim can you make using your experimental evidence? Table(s) of your results. Include expected, experimental, and % error as appropriate. Discussion of your results. Explain how your experiment results support your claims. Identify possible sources of uncertainty and error in your measurements. Use evidence from your laboratory notebook to support your error analysis. Discuss how the direction of each source of error affects the results. Supporting references. attachment_1 attachment_2 attachment_3 Safety and Pre-Lab: Titration Name Email Role Safety Compound Formula MW CAS # Relevant Physical Properties NFPA Code and Meaning Acetic acid (1) CH3COOH 60.052 g/mol 64-19-7 colorless liquid with a strong, corrosive pungent odor Health: 3 (Serious) Flammability: 2 (above 100F) Instability: 0 (stable) Vinegar (1) CH3COOH 60.052 g/mol 64-19-7 colorless liquid with a strong, corrosive pungent odor Health: 3 (Serious) Flammability: 2 (above 100 F) Instability: 0 (stable) Sodium hydroxide (0.25 M) (2) NaOH 40 g/mol 1310-73-2 Odorless, White, deliquescent pellets or flakes Health: 1 (serious) Flammability: 0 (will not burn) Instability: 1 (unstable if heated) Potassium hydrogen phthalate (3) C8H5KO4 204.22 g/moles 877-24-7 white powder, colorless crystals Health: 0 (Normal material) Flammability: 0 (will not burn) Instability: 0 (stable) Phenolphthalein indicator solution (4) C20H14O4 318.32 g/mol 77-09-8 white or microstrip yellow small crystals, being odorless, tasteless, insoluble in water and soluble in alcohol (ethanol) and ether Health: 0 (slightly hazardous) Flammability: 1 (above 100 F) Instability: 0 (stable) Precautions: Necessary Precautions (i.e., lab coat, goggles, gloves, hood, etc.) Substance Requiring Precaution Reason for Precaution Lab coat Sodium hydroxide Highly corrosive to skin and eye, and flammable Goggles Vinegar Corrosive and strong pungent odor Hood Acetic acid Corrosive and strong pungent odor Procedure: Provide step-by-step instructions for the experiment. Determine density of vinegar sample. a.) Weigh a 50 mL dry graduated cylinder on balance and record the mass obtained. b.) Fill the cylinder with 15ml of deionized water with a volumetric pipet and record the volume. c.) Weight it again and record the new mass. d.) Calculate the density using the mass of graduated cylinder + water and subtract the graduated cylinder mass. Divide this mass by the volume recorded. Answer should be about 0.997 g/mL. e.) Each student repeat steps a-d with vinegar. Standardization of sodium hydroxide solution with solid potassium hydrogen phthalate (KHP). a.) Get 50 mL burette. b.) Fill a graduated cylinder with15mL 0.25 M NaOH solution c.) Fill burette completely with the of NaOH solution given and record the concentration d.) Using a balance, record mass of the potassium hydrogen phthalate. e.) Fill a 125L flask with 100mL of deionized water and mix with the KHP f.) Place magnetic stir bars in 50 mL beaker g.) Add 2 drops of phenolphthalein using a pipet, into the beaker with potassium hydrogen phthalate h.) Place burette onto stand and beaker on top of magnetic stir plate, underneath burette i.) Release 10 mL of NaOH into the 50 mL beaker and wait a moment to see if a change occurs j.) add 5mL at a time until you reach 25mL left k.) add 1 drop at a time, waiting between drops until the solution becomes pink for at least 10-15 seconds l.) Once solution has become light pink, stop titration, and record new volume of solution in the beaker. m.) Repeat steps a-l for a total of three trials Titration of vinegar sample Fill a 50 mL burette completely with the solution made in the previous step. b.) Rinse 125mL flask with deionized water c.) Add 10 mL of vinegar using a pipet to the 125mL flask. d.) Add 2 drops of phenolphthalein into flask with the vinegar solution e.) Place burette onto stand and beaker on top of magnetic stir plate, underneath burette f.) Release one drop at a time, of vinegar into 50 mL beaker g.) Once solution has become light pink, stop titration and record new volume of solution in beaker h.) Repeat steps a-g for each student in group to perform individually three times total. Waste Disposal Place both flasks under fume hood Turn fume hood on Mix both solutions into one flask. Use pH paper to test pH. If the color is red to yellow, add sodium bicarbonate until it stops fizzing. If the color is dark green to blue, add acid until it stops fizzing. Repeat until pH is near neutral and stops fizzing. Properly dispose all waste in container in the instructor’s fume hood. Discussion: General Chemistry Titrations Lab 5 Report References: PubChem. Acetic Acid. https://pubchem.ncbi.nlm.nih.gov/compound/176 PubChem. Sodium Hydroxide. https://pubchem.ncbi.nlm.nih.gov/ Compound/14798 PubChem. Potassium Hydrogen Pthalate. https://pubchem.ncbi.nlm.nih.gov /compound/23676735 PubChem. Phenolphthalein. https://pubchem.ncbi.nlm.nih.gov/compound/4764 https://www.deanza.edu/chemistry/documents/1a/experiments/Experiment%20A7-%20Titration.v2.pdf Chemistry Libertets. https://chem.libretexts.org/Ancillary_Materials/Laboratory_Experiments/Wet_Lab_Experiments/General_Chemistry_Labs/Online_Chemistry_Lab_Manual/Chem_10_Experiments/11%3A_Titration_of_Vinegar_(Experiment)#:~:text=The%20NaOH%20will%20be%20added,equivalence%20point%20of%20the%20titration.&text=The%20volume%20of%20NaOH%20(aq)%20used%20to%20neutralize%20the%20vinegar https://www.primaryconnections.org.au/themes/custom/connections/assets/SBR/data/Chem/sub/baking/baking.htm Get a 10 % discount on an order above $ 100 Use the following coupon code : NURSING10