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A 21.70 mL volume of 0.0940 M NaOH is required to reach the phenolphthalein endpoint in...
A student determines that 13.67 mL of NaOH delivering 0.00336 moles of NaOH were required to neutralize the acetic acid in a 4.00 mL vinegar sample. What is the mass of acetic acid in the sample? Note: Use a molar mass of 60.05 g/mol for acetic acid Your Answer: Answer units A student determines that 0.208 grams of acetic acid are contained in 3.953 grams of vinegar. What is the mass% of acetic acid in the vinegar? Your Answer: Answer...
I need help calculating the mass percent and with the post lab question #2. Part 1 Mass Initial | Final Vol Nall Moles concen. KPHCG (ML) I (m2) Used (m2) KHP (mol)/NaOH(M) 0.28470.00 13.60r 13.600 10.00- 0.1025 2 UZ + ZANT 13.600 24.45 1 10.85 0.001128 10.40 Aug NaOH Concentration (M):0.1032 Part2 Vinegar identification # 4 Vinegar sample date: (011/ Vol Vinegat Initial Final Yol NaOH Mol Acotic Mass Acctic Mass % Titr ULST I OML Used (ml) Acid (mol)...
4. In a typical titration a student needed 36.48 mL of 0.1067 M NaOH to reach the phenolphtha- lein endpoint. If the volume of the original vinegar sample was 5.00 mL, calculate the mass yo of acetic acid in the vinegar. Renart vour answer to the appropriate number or signincam figures. 2. In step 5 of the procedure you were told to add between 25-50 mL of distilled water, but that the actual volume was not important. Explain why the...
3. What volume of 0.025 M NaOH will be required to reach the endpoint in a titration with 25.00 ml of 0.10 M HCI? Show your work with units and correct significant figures. Circle your answer. 4. Calculate the molarity of a sodium hydroxide solution if 25.00 mL 0.100 M maleic acid requires 22.10 ml of NaOH to reach the endpoint. Show your work with units and correct significant figures. Circle your answer. 5. The following data were collected in...
. A 10.00-ml aliquot of vinegar requires 16.95 mL of the 0.4874 M standa point of the titration. Calculate the molarity of HC,H,O, in vinegar. 4 M standardized NaOH solution to reach the end w swer to Problem #2, calculate the "percent by 3. Assume the density of the vinegar is 1.005 g/mL. Using your answer to Problem #2, calculate th mass" of HC,H,O2 (molar mass = 60.05 g/mol) in vinegar.
please show all work. thank you A 10. equivalence point. L sample of vinegar, an aqueous solution of acetic acid (HC2H02), is titrated with 0.5003 M NaOH, and 15.00 mL is required to reach the a. What is the molarity of the acetic acid? b. If the density of the vinegar is 1.006 g/cm3, what is the mass percent of acetic acid in the vinegar? A 10. equivalence point. L sample of vinegar, an aqueous solution of acetic acid (HC2H02),...
I’m so confused on how to do any of this. Name Date General Chemistry I Lab CHE 1211 Data: Concentration of NaOH Trial Titration (to be used as practice) Initial burete eading4.0 ml Final burette reading 20.h m 22.om. Volume of NaOH used Repeat until 2 successful titrations are achieved. Titrations (to be used in calculations) K.Oml 0.bml 35.o mL 22.3 mL 38.5ml ↓ 30.6 mL45.0 mL 49.0 mL 35.5mL50.0 me 22.0mL H. m0 ml 1b.20 m 4.5ml Initial burette...
Need help filling out the rest of the table, please. 1 M of NaOH 5% of acidity of acetic acid (vinegar) n out Data Table 1: Titration of Vinegar with Sodium Hydroxide Vinegar Sample 1 Vinegar Sample 2 Vinegar Sample 3 Mass of Vinegar 419 Volume of Vinegar Density 1.005 g/ml Initial NaOH volume in syinge OmL Final NoOH volume in syringe 5.8m Volume of NaOH Delivered i mL 3. b ?? Moles of NaOH Delivered Moles of Acetic Acid...
9. A 4-gram sample of vinegar containing acetic acid CH3C 0.2 M NaOH. After 15 mL of NaOH was added, the stoichiometric p reached as evidenced by the change in color of the indicator. Calculate percent of acetic acid in the vinegar. Molar mass of acetic acid=60.05 ining acetic acid CH3COOH was titrated with s added, the stoichiometric point was or of the indicator. Calculate the mass
A titration of vinegar with a solution of NaOH was performed. If 3.35 mL of vinegar needs 45.0 mL of 0.135 M NaOH to reach the equivalence point in a titration CH3COOH(aq)+NaOH(aq)→H2O(l)+NaC2H3O2(aq) Part A: Calculate the mass of acetic acid present in the vinegar sample? Part B: How many grams of acetic acid are in each mL of vinegar? Part C:How many grams of acetic acid would be in a 1.60 qt sample of this vinegar? Part D: How many...