PRE-LAB QUESTIONS 1. Differentiate between an acid and a base. 2. Calculate the pH and pOH...
PRE-LAB QUESTIONS
1. Differentiate between an acid and a base.
2. Calculate the pH and pOH of 1.2 x 10-3 M HCl solution.
3. Calculate pH, pOH and [OH-] of 0.1 M HNO3 solution.
4. If a solution X has pH = 5, which of the following is
true:
a. Solution X is neutral.
b. H3O+ ion concentration is higher than OH- concentration.
c. OH- ion concentration is higher than H3O+
concentration.
Homework Answers
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PRE-LAB QUESTIONS
1. Differentiate between an acid and a base.
2. Calculate the pH and pOH...
Calculate the pH and pOH of 1.2 x 10-3 M HCl solution. Calculate pH, pOH and...
Calculate the pH and pOH of 1.2 x 10-3 M HCl solution. Calculate pH, pOH and [OH-] of 0.1 M HNO3 solution. If a solution X has pH = 5, which of the following is true: Solution X is neutral. H3O+ ion concentration is higher than OH- concentration. c. OH- ion concentration is higher than H3O+ concentration.
Calculate the hydroxide ion concentration and the POH in an aqueous solution with a pH =...
Calculate the hydroxide ion concentration and the POH in an aqueous solution with a pH = 2.3 at 25°C. a. [OH 1 - 2.0 * 10-12M : POH - 2.30 b. [OH 7 -2.0 * 10-11M: POH = 11.70 C[OH 7 -5.0 x 10-3 M : POH = 11.70 d. [OH ) - 2.0 x 10-12 M : POH = 11.70 e.[OH ) - 2.0*10-12M : POH -8.50 Which of the following solutions is a good buffer system? a. A...
(a) The hydroxide ion concentration in an aqueous solution of HCl is 2.6x10-13 M. Calculate [H3O+],...
(a) The hydroxide ion concentration in an aqueous solution of HCl is 2.6x10-13 M. Calculate [H3O+], pH, and pOH for this solution. [H30*]=1 M pH= pOH = (b) The pH of an aqueous solution of HNO3 is 2.50. Calculate [H3O+], [OH"), and pOH for this solution. [H3O+]= M [OH]= M pOH =
answer questions 1-3 ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and...
answer questions 1-3
ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and Buffer Solutions Prelaboratory Exercises Date 1. A solution has a pH of 5.50. a. What is the pOH of this solution? b. Is the solution acidic, basic, or neutral? Give reasons c. Calculate the concentration of [H O'] and [OH-1 in this solution. 2. Solution A has a hydronium ion concentration of 1.3 x 10- M. Solution B has a hydroxide ion concentration of...
Weak Acid-Strong Base Titration Date Nanse PRE-LAB OUESTIONS 1 Calculate the molarity of a NaOH solution...
Weak Acid-Strong Base Titration Date Nanse PRE-LAB OUESTIONS 1 Calculate the molarity of a NaOH solution that was used to titrate 1.2 g of potassium acid phthalate if 37.50 ml of the base were reauired to get to the end point of the titration. 2 It takes 12.45 ml. of a 0.500 M NaOH solution larity of the acid to titrate 30.0 mL of acetic acid. What is the mo- 3. Using the titration curve below, calculate the K, of...
PRE-LAB for pH titration of a Strong Acid with Base This is due before the lab...
PRE-LAB for pH titration of a Strong Acid with Base This is due before the lab begins, Name 1. Calculate the pH of the following solutions: (a) 1 M NaCl Does not dissociate in water to produce either hydrogen or nyot thus it is a neutral Sall, so 7. (b) 1 M HOAc (Ka - 1.8 x 10-5) duce either hydrogen or hyd xde ion, (c) 1 M NHOH (Kb = 1.8 x 10-5) (d) 0.1 M NaOAC (e) 0.1...
Titration Curves of Strong and Weak Acids and Bases. Pre-lab questions. Sed and weak acids ng acids cont 214-2343 -...
Titration Curves of Strong and Weak Acids and Bases. Pre-lab questions. Sed and weak acids ng acids cont 214-2343 -110.51 Explain the difference between a strong acid and a weak acid. A Strong Acd die Insed and weak are ionsrzed partially. Moreover Strong oud a higher concentration of Hydrogen 2. Calculate the pH of an HCl solution in which the (H30'] = 1.75 x 10 M. DH- og IH30-] [H2O PH- - 1.75% 103] PH=72.75 3. Calculate the pH of...
3a. Calculate the pH of a 7.8x10 * M HCl solution. 3b. Is this solution acidic,...
3a. Calculate the pH of a 7.8x10 * M HCl solution. 3b. Is this solution acidic, basic or neutral? 4a. Determine the pH of 1.3 x 10 M NaOH. 4b. Is this solution acidic, basic or neutral? 5a. A 0.1 M NaHCO3 solution has a pH of 8.400. What is the [H3O'? 5b. Is this solution acidic, basic or neutral? 6. Determine whether the following statements are true or false regarding a 0,010 M solution of the strong acid HNO3:...
CHM 1702 Name The pH scale - Reading Guide Describe how pH and pOH are defined...
CHM 1702 Name The pH scale - Reading Guide Describe how pH and pOH are defined and how the quantities are related pH POH - pH + POH- pH at 25 Complete the table below to describe aqueous solutions Relative lon Classification concentration pH <7 Neutral [H ] [OH 1 pH > 7 Is this Calculate the pH of a solution with a hydronium ion concentration of 1.2 x 10' M solution acidic or basic? (ans. pH=3.9. acidic) Calculate the...
CHEMWORK For solutions of the same concentration, as acid strength increases [H] pH [OH-] POH Fill...
CHEMWORK For solutions of the same concentration, as acid strength increases [H] pH [OH-] POH Fill in the missing information in the following table. POH [H+] [OH^] Acidic, Basic or Neutral? PH Solution a 9.61 pH POH [H+] Acidic, Basic or Neutral? [OH-] M4.2 x 10-6 M Solution b pH POH [OH-] Acidic, Basic or Neutral? [H+] 0.031 M Solution pH POH 1.23 (H+] M [OH-] M Acidic, Basic or Neutral? ___ Solution d
Calculate the hydroxide ion concentration and the POH in an aqueous solution with a pH = 2.3 at 25°C. a. [OH 1 - 2.0 * 10-12M : POH - 2.30 b. [OH 7 -2.0 * 10-11M: POH = 11.70 C[OH 7 -5.0 x 10-3 M : POH = 11.70 d. [OH ) - 2.0 x 10-12 M : POH = 11.70 e.[OH ) - 2.0*10-12M : POH -8.50 Which of the following solutions is a good buffer system? a. A...
(a) The hydroxide ion concentration in an aqueous solution of HCl is 2.6x10-13 M. Calculate [H3O+], pH, and pOH for this solution. [H30*]=1 M pH= pOH = (b) The pH of an aqueous solution of HNO3 is 2.50. Calculate [H3O+], [OH"), and pOH for this solution. [H3O+]= M [OH]= M pOH =
answer questions 1-3
ame answer questions 1-3 Name Lab Instructor Experiment 11-pH Determination of Solutions and Buffer Solutions Prelaboratory Exercises Date 1. A solution has a pH of 5.50. a. What is the pOH of this solution? b. Is the solution acidic, basic, or neutral? Give reasons c. Calculate the concentration of [H O'] and [OH-1 in this solution. 2. Solution A has a hydronium ion concentration of 1.3 x 10- M. Solution B has a hydroxide ion concentration of...
Weak Acid-Strong Base Titration Date Nanse PRE-LAB OUESTIONS 1 Calculate the molarity of a NaOH solution that was used to titrate 1.2 g of potassium acid phthalate if 37.50 ml of the base were reauired to get to the end point of the titration. 2 It takes 12.45 ml. of a 0.500 M NaOH solution larity of the acid to titrate 30.0 mL of acetic acid. What is the mo- 3. Using the titration curve below, calculate the K, of...
PRE-LAB for pH titration of a Strong Acid with Base This is due before the lab begins, Name 1. Calculate the pH of the following solutions: (a) 1 M NaCl Does not dissociate in water to produce either hydrogen or nyot thus it is a neutral Sall, so 7. (b) 1 M HOAc (Ka - 1.8 x 10-5) duce either hydrogen or hyd xde ion, (c) 1 M NHOH (Kb = 1.8 x 10-5) (d) 0.1 M NaOAC (e) 0.1...
Titration Curves of Strong and Weak Acids and Bases. Pre-lab questions. Sed and weak acids ng acids cont 214-2343 -110.51 Explain the difference between a strong acid and a weak acid. A Strong Acd die Insed and weak are ionsrzed partially. Moreover Strong oud a higher concentration of Hydrogen 2. Calculate the pH of an HCl solution in which the (H30'] = 1.75 x 10 M. DH- og IH30-] [H2O PH- - 1.75% 103] PH=72.75 3. Calculate the pH of...
3a. Calculate the pH of a 7.8x10 * M HCl solution. 3b. Is this solution acidic, basic or neutral? 4a. Determine the pH of 1.3 x 10 M NaOH. 4b. Is this solution acidic, basic or neutral? 5a. A 0.1 M NaHCO3 solution has a pH of 8.400. What is the [H3O'? 5b. Is this solution acidic, basic or neutral? 6. Determine whether the following statements are true or false regarding a 0,010 M solution of the strong acid HNO3:...
CHM 1702 Name The pH scale - Reading Guide Describe how pH and pOH are defined and how the quantities are related pH POH - pH + POH- pH at 25 Complete the table below to describe aqueous solutions Relative lon Classification concentration pH <7 Neutral [H ] [OH 1 pH > 7 Is this Calculate the pH of a solution with a hydronium ion concentration of 1.2 x 10' M solution acidic or basic? (ans. pH=3.9. acidic) Calculate the...
CHEMWORK For solutions of the same concentration, as acid strength increases [H] pH [OH-] POH Fill in the missing information in the following table. POH [H+] [OH^] Acidic, Basic or Neutral? PH Solution a 9.61 pH POH [H+] Acidic, Basic or Neutral? [OH-] M4.2 x 10-6 M Solution b pH POH [OH-] Acidic, Basic or Neutral? [H+] 0.031 M Solution pH POH 1.23 (H+] M [OH-] M Acidic, Basic or Neutral? ___ Solution d
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