How would you set up number 5? 4:50 1ull LTEWeek 5 Pre-lab1) You will use acid an base in this week's lab. Which goesinto the burette?2) What are you using as a indicator?3) What color is the indicator in acidic solution?4) If 0.248 g of oxalic acid dihydrate requites 28.4 mL ofNaOH for neutralization, what is the molarity ofNaOH solution?5) A 5.00 mL aliquot of an acetic acid solution requires 42.3mL of 0.24 M NaOH for neutralization, what is the percent bymass of acetic acid in the solution? The density of thesolution is 1.004 g/mL.

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Answered: 5) A 5.00 mL aliquot of an acetic acid…

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter18: Acids And Bases

Section: Chapter Questions

Problem 92A

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What is the percentage of total acid expressed as acetic acid (CH3COOH) in a sample of vinegar if 3.000 g of the vinegar requires 20.50 mL of 0.1150 N KOH solution for an endpoint with phenolphthalein indicator? (Note: Use the least significant digits in your answer.)
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A fruit juice contains an unknown percentage of citric acid. During a titration 33.50 cm³ of 0.0102 M sodium hydroxide is required to neutralise the citric acid in 50.0 cm³ of fruit juice. The unbalanced reaction equation is given in Figure 10. Citric acid is a triprotic acid – it can donate three H⁺ ions in aqueous solution. You can assume that the density of the fruit juice is the same as that of water. What is the percentage of citric acid in the sample? [Round the answer to three decimals. Do not type in the percentage sign. Use a decimal point.] * Your answer

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5) A 5.00 mL aliquot of an acetic acid solution requires 42.3 mL of 0.24 M NaOH for neutralization, what is the percent by mass of acetic acid in the solution? The density of the solution is 1.004 g/mL.