Write the chemical reaction of each of the following reaction, indicate the product(s) formed and calculate...
Write the chemical reaction of each of the following reaction, indicate the product(s) formed and calculate the pH at the equivalence point of each of the following titration, and choose the apropriate indicator for the titration.
(A) Titration of a strong acid with a strong Base: 0.10 M HCl with 0.10 M NaOH
(B) Titration of a weak acid with a strong Base:
(i) 0.10 M acetic acid (Ka = 1.8x10-5), CH3COOH (or HOAc for short) with 0.10 M NaOH
(ii) 0.10 M hypochlorous acid, HOCl (Ka = 2.9x10-8) with 0.10 M NaOH
(C) Titration of a weak acid with a strong Base: 0.10 M ammonia (NH3 or NH4 OH) (Kb = 1.8x10-5) with 0.10 M HCl
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Write the chemical reaction of each of the
following reaction, indicate the product(s) formed
and calculate...
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction...
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction change (s) NaOH+HCI - 21 0s 1 250.5 NaOH+ HC2H3O2- 2 8l.55 99s 3 NH3+ HCl- 930s 4 NH3 + HC2H3O2- 90.55 81.Os Complete the reactions above. Attach copies of all four graphs to this report. 1. 2. Examine the time data for each of the Trials 1- -4. In which trial(s) did the indicator change color at about the same time as the...
A. Match each type of titration to its pH at the equivalence point. Weak acid, strong base Strong acid, strong base...
A. Match each type of titration to its pH at the equivalence point. Weak acid, strong base Strong acid, strong base Weak base, strong acid pH less than 7 pH equal to 7 pH greater than 7 B. A 56.0 mL volume of 0.25 M HBr is titrated with 0.50 M KOH. Calculate the pH after addition of 28.0 mL of KOH. C. Consider the titration of 50.0 mL of 0.20 M NH3 (Kb=1.8 x 10^-5) with 0.20 M HNO3....
1. Answer the following questions in detail. a) Given 25mL of 0.10 M HCl and 25...
1. Answer the following questions in detail. a) Given 25mL of 0.10 M HCl and 25 mL of 0.10 M acetic acid, will the amount of 0.10 M NaOH required to reach the equivalence point for each solution be the same, more, or less? b) Again, using 0.10 M NaOH, will the pH at the equivalence point of 25 mL 0.10 M HCl be the same, more, or less as the pH at the equivalence points for 25 mL of...
Find the pH of these compounds. use 5% approximation where nescessary. say each compund has m...
find the pH of these compounds.
use 5% approximation where nescessary.
say
each compund has molarity of 0.10M
HCl H2S04 strong acicd! the first proton comes off completely and [HSO4] NaOH NH3 NH4CI CH3COOH Ka 1.8 x 10-5 CH3COONa Kb(CH3COO) 5.6 x 1010 . .solve the quadratic equation. strong base Kb 1.8 x 10-5 Ka(NH4) 5.6 x 1010
HCl H2S04 strong acicd! the first proton comes off completely and [HSO4] NaOH NH3 NH4CI CH3COOH Ka 1.8 x 10-5 CH3COONa Kb(CH3COO)...
Learning Goal: To learn about titration types and how to calculate pH at different points of...
Learning Goal: To learn about titration types and how to calculate pH at different points of titration. In an acid-base titration, a titrant (solution of a base or acid) is added slowly to an analyte (solution of an acid or base). The titration is often monitored using a pH meter. A plot of pH as a function of the volume of titrant added is called a pH titration curve. Prior to the titration, the pH is determined by the concentration...
3. Weak Base versus Strong Acid Derive a titration curve for the titration of 50.0 mL of 0.10 M NH3 (Kb=1.8 x 10-5) wit...
3. Weak Base versus Strong Acid Derive a titration curve for the titration of 50.0 mL of 0.10 M NH3 (Kb=1.8 x 10-5) with 0.25 M HCl. Calculate the pH for the following volumes of HCl (0 mL, 10 mL, 15 mL, 20 ml, 25 mL, 30 mL, 35 mL). Volume of HCI, in milliters 0 pH (a) 10 15 (d) 20 |(f) 25 30 35 (g) pH at the equivalence point Specify your choice of indicator
1. Answer the following questions in detail. a) Given 25mL of 0.10 M HCl and 25...
1. Answer the following questions in detail. a) Given 25mL of 0.10 M HCl and 25 mL of 0.10 M acetic acid, will the amount of 0.10 M NaOH required to reach the equivalence point for each solution be the same, more, or less? b) Again, using 0.10 M NaOH, will the pH at the equivalence point of 25 mL 0.10 M HCl be the same, more, or less as the pH at the equivalence points for 25 mL of...
Which of the statements below is/are true of your solution at equivalence? Select all true statements...
Which of the statements below is/are true of your solution at equivalence? Select all true statements below. The concentration of acetate ions (CH2C00) at equivalence is the same as the original concentration of acetic acid (CH2COOH) at the start of the titration (i.e. 1.0 M). The number of moles of acetate ions (CH3COO") at equivalence is the same as the number of moles of of acetic acid (CH2COOH) at the start of the titration (i.e. 0.10 mol). At the equivalence...
Calculate the pH after the addition of each of the following volumes when 20.00 mL of...
Calculate the pH after the addition of each of the following volumes when 20.00 mL of 0.125 M NaOCl is titrated with 0.250M HCl. (Ka = 3.0 * 10^-8 for HOCl) (Hint: This is a weak base-strong acid titration) A) 5.0 mL of HCl added B)10.0 mL of HCl added C) 17.0 mL of HCl added
In which of the following titrations would the solution be neutral at the equivalence point? [Hint:...
In which of the following titrations would the solution be neutral at the equivalence point? [Hint: For a neutral equivalence point, we need both a strong acid and a strong base as analyte and titrant, respectively.] HOCl titrated with Ba(OH)2 CH3COOH titrated with NaOH HClO4 titrated with KOH Sr(OH)2 titrated with H3PO4 NH3 titrated with HCl
DATA AND CALCULATIONS Time at equivalence point (s) Time of color Trial *Equation for acid-base reaction change (s) NaOH+HCI - 21 0s 1 250.5 NaOH+ HC2H3O2- 2 8l.55 99s 3 NH3+ HCl- 930s 4 NH3 + HC2H3O2- 90.55 81.Os Complete the reactions above. Attach copies of all four graphs to this report. 1. 2. Examine the time data for each of the Trials 1- -4. In which trial(s) did the indicator change color at about the same time as the...
find the pH of these compounds.
use 5% approximation where nescessary.
say
each compund has molarity of 0.10M
HCl H2S04 strong acicd! the first proton comes off completely and [HSO4] NaOH NH3 NH4CI CH3COOH Ka 1.8 x 10-5 CH3COONa Kb(CH3COO) 5.6 x 1010 . .solve the quadratic equation. strong base Kb 1.8 x 10-5 Ka(NH4) 5.6 x 1010
HCl H2S04 strong acicd! the first proton comes off completely and [HSO4] NaOH NH3 NH4CI CH3COOH Ka 1.8 x 10-5 CH3COONa Kb(CH3COO)...
3. Weak Base versus Strong Acid Derive a titration curve for the titration of 50.0 mL of 0.10 M NH3 (Kb=1.8 x 10-5) with 0.25 M HCl. Calculate the pH for the following volumes of HCl (0 mL, 10 mL, 15 mL, 20 ml, 25 mL, 30 mL, 35 mL). Volume of HCI, in milliters 0 pH (a) 10 15 (d) 20 |(f) 25 30 35 (g) pH at the equivalence point Specify your choice of indicator
Which of the statements below is/are true of your solution at equivalence? Select all true statements below. The concentration of acetate ions (CH2C00) at equivalence is the same as the original concentration of acetic acid (CH2COOH) at the start of the titration (i.e. 1.0 M). The number of moles of acetate ions (CH3COO") at equivalence is the same as the number of moles of of acetic acid (CH2COOH) at the start of the titration (i.e. 0.10 mol). At the equivalence...
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