9.个盟ANALYSIS PAGERESULTS TABLEClick the blank boxand enter thenumbersVolume of H2SO4 = 45mLVolume of NAOH =mL2.3.7.NaOH Concentration = 0.15 M4 56.H2SO4 Concentration =0.7507.SUBMITC. E: 90 / 120DAY 109:51PROGRESS: 69%Fill the burette with the correct standsolution, don't forget to use a funnel.THEORYMEDIAMISSION1. Place the funnel on the burette.2. Pick the correct standard solution. You can choose between H2SO4,CH3COOH, HCI, and NaOH3. Pour the standard solution into the burette by clicking the funnel.4. For now, add minimal 45 mL of titrant into the burette.

Given information, Concentration of NaOH = 0.15 M Volume of NaOH solution = 7 mL Volume of H2SO4…

Answered: 9. 个盟 ANALYSIS PAGE RESULTS TABLE Click…

Principles of Modern Chemistry

8th Edition

ISBN:9781305079113

Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler

Chapter11: Solutions

Section: Chapter Questions

Problem 10P

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When methyl red is added to an aqueous solution, a pink color results. When methyl orange is added to the same solution, a yellow color is produced. What is the approximate pH range of the solution? Use Figure 18.24
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Potassium hydrogen phthalate is a solid, monoprotic acid frequently used in the laboratory as a primary standard. It has the formula KHC8H4O4. This is often written in the short-hand notation as KHP. If 25.0mL of a potassium hydroxide solution are needed to neutralize 2.26g of KHP, what is the molarity of the potassium hydroxide solution? Potassium hydrogen phthalate sometimes called potassium biphthalate, as shown on this bottle is an acid that is convenient to store and use because it is a solid.
Part A) A 10.0 mL sample of 0.250 mol/L NiF2(aq) is mixed with 20.0 mL of 0.0900 mol/L NaOH(aq) and then diluted to a final volume of 100. mL.Calculate the concentration of Ni2+ ions in the 100 mL mixture before the reaction starts. Express your answer to three significant figures.ksp: 5.48e-16
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Other information not on photo 2 gram potassium bitartrate are put into a 250ml flask. 150ml water is added. The solution is stirred and left to settle. the solution if filtered through a dry funnel into a 250ml breaker. 25ml of this solution was placed into 4 different flasks each. Approximately 11.5666667ml of NaOH was added to each flask. What is the concentration of the HC4H4O6-? (Asked on the right side of the table)
ted Solid manganese (II) sulfate is slowly added to 75.0 mL of a potassium carbonate solution until the concentration of manganese(II) ion is 0.0181 M. The maximum amount of carbonate remaining in solution is M. 80 Submit Answer $ 4 R V % 5 Use the References to access important values if needed for this question. Retry Entire Group 5 more group attempts remaining T G Cengage Learning | Cengage Technical Support ^ 6 B MacBook Pro Y H & 7 N U J ▶ 00 * 8 I M ( - O 9 1 K O Save and Exit ? 1
3 Solid ammonium bromide is slowly added to 75.0 mL of a 0.283 M silver nitrate solution until the concentration of bromide ion is 0.0583 M. The percent of silver ion remaining in solution is %. Submit Answer $ 4 R F % 5 Use the References to access important values if needed for this question. Retry Entire Group 5 more group attempts remaining T G Cengage Learning | Cengage Technical Support ^ 6 MacBook Pro Y H & 7 U J * 00 8 1 ( 9 K O < ) O L P Previous Email Instructor + = Next Save and Exit
1. A solution contains a mixture of Na2CO3 and NaOH. Using phenolphthalein indicator 25 mL of mixture required 19.5 mL of 0.995 M HCl for the endpoint. With methyl orange, 25 mL of solution required 25 mL of the same HCl for the endpoint. Calculate grams per liter of Na2CO3 in the mixture. a.23b.36 c.78 d.112. A 1.2040 g sample containing sodium carbonate and inert material was dissolved in water and titrated to methyl orange end point, requiring 32.50 mL of 0.1020 M HCl. Calculate the %Na2CO4 in the sample. a. 93.36% b. 14.59% c. 12.75% d. 23.41%3. A 0.1510 g KHP (MW = 204.22 g/mol) sample required a volume of 57.04 mL of NaOH solution to reach a phenolphthalein end point. Calculate the molarity of NaOH titrant. a. 0.02593 M b. 0.006481 M c. 0.01296 M d. 0.01012 M

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