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Chem 305 Laboratory 8 Lab Report Name: Section: Due: 11:59 pm 7/29/20 Concept Questions: 1) Determine...
Concept Questions: 1) Determine whether the following statements are True or False. a. b. A solution...
Concept Questions: 1) Determine whether the following statements are True or False. a. b. A solution with a pH of 5 is a basic solution. HCl (aq) is an Arrhenius acid HCI, HNO3 and H2SO4 are all strong acids. As the concentration of H* in water increases the concentration c. d. of OH' stays the same. Calculating pH, POH, (OH) and (H30*) 2) A solution of HC2H302 has a concentration of 0.00045 MH* what is the pH of the solution?...
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H302 has a concentration of 0.00045...
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H302 has a concentration of 0.00045 M H what is the pH of the solution? (show your work). PH 3) If a solution has a concentration of 1.23x10-6 MH* what is the concentration of OH? (show your work). (OH) 4) An unknown solution of HNO3 (aq) has a pH of 2.96. What is the concentration of H* (aq) in solution? (show your work). 5) A solution is 0.000037 M in...
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H302 has a concentration of 0.00045...
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H302 has a concentration of 0.00045 M H what is the pH of the solution? (show your work). pH 3) If a solution has a concentration of 1.23x106 M H what is the concentration of OH? (show your work). rolul brenovadonismo loob [OH-] vor of 4) An unknown solution of HNO3(aq) has a pH of 2.96. What is the concentration of H (aq) in solution? (show your work). [H3O*) 9
please help!! thank you Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H2O2 has...
please help!! thank you
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H2O2 has a concentration of 0.00045 M H what is the pH of the solution? (show your work). PH 3) If a solution has a concentration of 1.23x106 MH* what is the concentration of OH? (show your work). (OH) 4) An unknown solution of HNO3(aq) has a pH of 2.96. What is the concentration of H* (aq) in solution? (show your work). [H30*)
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...
1. Which of the followi ch of the following reactions is not readily explained by the Arrhenius concept of acids a...
1. Which of the followi ch of the following reactions is not readily explained by the Arrhenius concept of acids and bases? a. A. HCl(aq) + NaOH(aq) - NaCl(aq) + H20() b. H30(aq) + OH-(aq) + 2H20(1) c. HCI(g) + NH3(g) - NH4Cl(s) d. HC2H302(aq) + H2O(l) H30*(aq) + C2H302-(ag) e. H30 (aq) + OH-(aq) + 2H2O(aq) 2. Classify each of the following species as Brønsted acid or base or both: a) H20, b) OH", c) H30, d) NH3, e)...
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1....
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
RUVILUULI Q. #1. The equilibrium constant for the auto-ionization of water 2H30 (I) = H3O'(aq) +...
RUVILUULI Q. #1. The equilibrium constant for the auto-ionization of water 2H30 (I) = H3O'(aq) + OH(aq) is 1.0 x 10-4 at 25°C and 3.8 x 10-14 at 40°C. Is the forward process endothermic or exothermic? Need to show your calculation. Ans: exothermic Q. #2. If you have 0.040 M solution two strong acids like HCI and H2SO, which one do you think would have behaves as stronger acids? Explain your answer with ICE table and relevant calculation. K for...
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
CHEM 2343A HOMEWORK W13 Name: DUE 11/18/19 at 9:10 AM There are total of 4 questions...
CHEM 2343A HOMEWORK W13 Name: DUE 11/18/19 at 9:10 AM There are total of 4 questions on this homework assignment 1. For the reaction outlined below in la and I draw out the reaction mechanism using arrow formalism to describe how the reaction below occurs. Be sure to draw out all action intermediates & the moment of all electrons needed to justify the formation of the indicand product. You do not need to add in any reagents that are not...
Concept Questions: 1) Determine whether the following statements are True or False. a. b. A solution with a pH of 5 is a basic solution. HCl (aq) is an Arrhenius acid HCI, HNO3 and H2SO4 are all strong acids. As the concentration of H* in water increases the concentration c. d. of OH' stays the same. Calculating pH, POH, (OH) and (H30*) 2) A solution of HC2H302 has a concentration of 0.00045 MH* what is the pH of the solution?...
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H302 has a concentration of 0.00045 M H what is the pH of the solution? (show your work). PH 3) If a solution has a concentration of 1.23x10-6 MH* what is the concentration of OH? (show your work). (OH) 4) An unknown solution of HNO3 (aq) has a pH of 2.96. What is the concentration of H* (aq) in solution? (show your work). 5) A solution is 0.000037 M in...
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H302 has a concentration of 0.00045 M H what is the pH of the solution? (show your work). pH 3) If a solution has a concentration of 1.23x106 M H what is the concentration of OH? (show your work). rolul brenovadonismo loob [OH-] vor of 4) An unknown solution of HNO3(aq) has a pH of 2.96. What is the concentration of H (aq) in solution? (show your work). [H3O*) 9
please help!! thank you
Calculating pH, POH, (OH) and (H30*] 2) A solution of HC2H2O2 has a concentration of 0.00045 M H what is the pH of the solution? (show your work). PH 3) If a solution has a concentration of 1.23x106 MH* what is the concentration of OH? (show your work). (OH) 4) An unknown solution of HNO3(aq) has a pH of 2.96. What is the concentration of H* (aq) in solution? (show your work). [H30*)
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...
1. Which of the followi ch of the following reactions is not readily explained by the Arrhenius concept of acids and bases? a. A. HCl(aq) + NaOH(aq) - NaCl(aq) + H20() b. H30(aq) + OH-(aq) + 2H20(1) c. HCI(g) + NH3(g) - NH4Cl(s) d. HC2H302(aq) + H2O(l) H30*(aq) + C2H302-(ag) e. H30 (aq) + OH-(aq) + 2H2O(aq) 2. Classify each of the following species as Brønsted acid or base or both: a) H20, b) OH", c) H30, d) NH3, e)...
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
RUVILUULI Q. #1. The equilibrium constant for the auto-ionization of water 2H30 (I) = H3O'(aq) + OH(aq) is 1.0 x 10-4 at 25°C and 3.8 x 10-14 at 40°C. Is the forward process endothermic or exothermic? Need to show your calculation. Ans: exothermic Q. #2. If you have 0.040 M solution two strong acids like HCI and H2SO, which one do you think would have behaves as stronger acids? Explain your answer with ICE table and relevant calculation. K for...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
CHEM 2343A HOMEWORK W13 Name: DUE 11/18/19 at 9:10 AM There are total of 4 questions on this homework assignment 1. For the reaction outlined below in la and I draw out the reaction mechanism using arrow formalism to describe how the reaction below occurs. Be sure to draw out all action intermediates & the moment of all electrons needed to justify the formation of the indicand product. You do not need to add in any reagents that are not...
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