12 10 Hd 8 6 0 0 4 8 12 16 20 24 28 32 36 Volume Base Added (mL) 8A. What was in the Erlenmeyer flask (conical flask)? o Acid or Base 8B. Estimate the end point volume of the titration using the titration curve: 8C. At what volume of the added titrant does the pH of the solution equal the pKa? 8D. Estimate the pka of the acid: 8E. Estimate the pH range of the buffer region of the titration:

12 10 Hd 8 6 0 0 4 8 12 16 20 24 28 32 36 Volume Base Added (mL) 8A. What was in the Erlenmeyer flask (conical flask)? o Acid or Base 8B. Estimate the end point volume of the titration using the titration curve: 8C. At what volume of the added titrant does the pH of the solution equal the pKa? 8D. Estimate the pka of the acid: 8E. Estimate the pH range of the buffer region of the titration:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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em 119 My Course X Macmillan: X Course Mo Submit Answer X Sections 5 What is the FORMULA for the limiting reagent? References X age.com/static/nb/ui/evo/index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapsh What amount of the excess reagent remains after the reaction is complete? HOMEWOR Use the References to access Important values if needed for this question. For the following reaction, 20.3 grams of carbon dioxide are allowed to react with 39.6 grams of potassium hydroxide. carbon dioxide (g) + potassium hydroxide (aq) potassium carbonate (aq) + water (1) - What is the maximum amount of potassium carbonate that can be formed? MacBook Air X grams MindTap - grams ;
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Cl₂(g) + 2e Cr₂0 (aq) + 14 H(aq) + 6e¯ 02(g) +4H(aq) + 4e¯ MnO2(s) + 4H(aq) + 2e 103 (aq) +6H(aq) + 5e¯ VO₂ (aq) + 2H(aq) + e¯ Br₂() + 2e NO, (aq) + 4H(aq) + 3e¯ ClO2(g) + e Ag+(aq) + e 2 CT (aq) 1.36 2 Cr3+(aq) + 7 H₂O(1) 1.33 2 H₂O(1) 1.23 Mn2+(aq) + 2 H2O() 1.21 12(aq) + 3H2O(l) VO2+(aq) + H2O(l) 1.20 1.00 2 Br (aq) 1.09 NO(s) + 2 H2O(l) CIO₂(aq) 0.96 0.95 Ag(s) 0.80 0.77 Fe3+(aq) + e Fe2+(aq) A mixture of Fe3+, CIO₂, and Cr₂O,² was made, what reaction would be predicted, if any? a. Fe3+ + Cr2O7²- b. Cr2O + Clo²- c. Fe3+ Clo²- d. No reaction. -> -> Fe²+ + Cr³+. - Cr3+ + ClO2. Fe²+ + ClO2.
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So a Flame Test Investigation was conducted. In that activity, short wooden splints (sticks)were soaked in eight different chemical solutions. The splints were then held over a lit Bunsen burner oneat a time, at which time each one gave off a distinctive color of light Each splint produced a dominant, vibrant color, and the color was different for each one. Forexample, the splint soaked in copper chloride produced a green flame and the splint soaked in lithiumchloride produced a brilliant red flame. Please explain the following for me: 1. Why do chemicals give off light when heated by a Bunsen burner? 2. None of the chemicals produced “white light” similar to a common light fixture. In otherwords, none of the chemicals gave off the entire spectrum of visible colors. Why not? 3. Why does each chemical give off its own unique color that is different from every otherchemical? Give thorough explanations. Also, when explaining, correctly use each of the following terms at least…
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Chrome File Edit View History Bookmarks People Tab Window Help * 30% (4) Sat 2:00 PM Q OE o Chem101 O General Chemistry I (LAB SCI) X + i app.101edu.co EApps MM Gmail YouTube 9 Maps A Translate https://www.carth. 9 Google Chrome isn't your default browser Set as default Question 7 of 7 Submit Using the equations 2 Sr(s) + O2 (g) → 2 Sro (s) AH° = -1184 kJ/mol CO2 (g) → C (s) + O2 (g) AH° = 394 kJ/mol kJ/mol Determine the enthalpy for the reaction C(s) + 2 SrO(s) → CO2 (g) + 2 Sr(s). 1 2 6 C 03.0 Se VHFORMA The MO -Standa 8 AH ma +/- x 100 8T國山電@ O etv Oct 24 MacBook Air 80 888 SC FS F6 F3 F2 %23 2$ & delete 3 5 8. W E R Y U H J к K ret F V M 4-
The below drawing shows the equilibrium vapor pressure of a pure liquid. Select the drawing that represents the equilibrium vapor pressure when a nonvolatile solute is dissolved in the liquid? a)