Name: Acids and Bases Worksheet #1

Name: Acids and Bases Worksheet #1

<p>Name: Acids and Bases Worksheet #1</p><p>(Characteristics, Conjugates, Kw Strong Acids and Bases) 1. Acids donate hydrogen ions in water. True or false</p><p>2. Bases produce hydroxide ions in water. True or false</p><p>3. Acids donate a H+ in water. True or false</p><p>4. Bases accept a H+ in water. True or false</p><p>5. List 5 characteristics of an acid and 5 characteristics of a base:</p><p>6. A substance that does not turn litmus paper blue and remains colorless in the presence of phenolphthalein would be ______. What is the pH range for acids?______for bases?______</p><p>7. Determine which of the following are strong acids, weak acids, strong bases, and weak bases. a. H2SO3______b. HNO3______c. HBr______d. HOI______e. H3AsO4______f. NaOH______</p><p>8. Determine the acid, base, conjugate acid, and conjugate base in each: + - a. CH3COOH(aq) + H2O(l)  H3O (aq) + CH3COO (aq)</p><p>- - b. HCO3 (aq) + H2O(l)  H2CO3(aq) + OH (aq)</p><p>2- - - c. HNO3 + SO4  HSO4 + NO3</p><p>Kw and Strong Acid and Base Calculations: SHOW ALL WORK FOR CREDIT!!</p><p>______13. If [H+] = 1.2X10-3M calculate [OH-]. </p><p>- -2 + ______14. [OH ] = 3.5X10 M. Use Kw to determine [H ]. </p><p>+ - -4 ______15. Use Kw to determine [H ] if [OH ] = 2.0X10 M Ca(OH)2. </p><p>- + -4 ______16. Use Kw to determine the [OH ] if [H ] = 6.0X10 M H2SO4. Acids and Bases Worksheet #2 (pH Strong Acids and Bases, % Ionization Weak Acids and Bases) pH and Strong Acid and Base Calculations: SHOW ALL WORK FOR CREDIT!!</p><p>______17. What is the pH if the [H+] = 0.80M?</p><p>______18. If the pH of a strong acid solution is known to be 3.25, what is the [H+]? ______(b) what is the pOH of this solution?</p><p>______19. If the pOH of a sodium hydroxide solution is known to be 1.50, what is the [OH-]?</p><p>______20. What is the pOH if the [OH-] = 0.165 M? ______(b) What is the pH of this basic solution?</p><p>______21. If the pOH of a cesium hydroxide solution is known to be 4.00, what is the [OH-]?</p><p>______22. If the pH of a hydroiodic acid solution is known to be 3.21, what is the [H+]?</p><p>______23. What is the pH if the [OH-] = 0.45 M? ______(b) what is the pOH of this solution?</p><p>24. Calculate the percent ionization for a 1.0M weak acid solution if the concentration of ions is 0.025M .</p><p>25. Calculate the percent ionization for a 1.0M weak base solution if the concentration of ions is 0.050M . Name: Acids and Bases Worksheet #3 (Titrations)</p><p>1. Suppose you know 0.020L of a 0.0050M NaOH solution is required to reach the equivalence point in the titration of 0.010L of an unknown molarity of HCl. What is the molarity of the HCl? Reaction: NaOH + HCl → NaCl + H2O</p><p>Acid Base M= M= mol= mol= V (in L)= V (in L)=</p><p>2. In a titration, 0.0274L of a 0.0154M Ba(OH)2 solution is added to a 0.0200L solution of HCl with an unknown concentration. What is the molarity of the HCl solution? Reaction: Ba(OH)2 + 2HCl → BaCl2 + 2H2O</p><p>Acid Base M= M= mol= mol= V (in L)= V (in L)=</p><p>3. A 0.0155L sample of a 0.215M KOH solution was neutralized by0.0 212L of aqueous sulfuric acid in a titration. Calculate the M of the sulfuric acid solution. Reaction: 2KOH + H2SO4 → K2SO4 + 2H2O</p><p>Acid Base M= M= mol= mol= V (in L)= V (in L)= Acids and Bases Test Review Be sure to read the notes and complete all worksheets! 1. List 5 properties of acids and 5 properties of bases. </p><p>2. Define the following in terms of pH, pOH, [H+], and [OH-]: a. neutral solution b. acidic solution c. basic solution</p><p>3. Determine the acid, base, conjugate acid, and conjugate base in each: + - a. CH3COOH(aq) + H2O(l)  H3O (aq) + CH3COO (aq)</p><p>Calculating the pH of Strong Acids and Bases 10. What is the pH of a solution if the [H+]=0.75 M? </p><p>11. What is the pOH of a solution if the [OH-]=3.75 M?</p><p>12. Find the pOH of a strong base that has an [OH-] of 1.0 x 10-9 M.</p><p>13. What is the [H+] if the pH is 12.05?</p><p>14. A solution has a pH of 8.5. What is the [H+]? What is the [OH-]?</p><p>Titrations 15. What is the molarity of NaOH if 0.0450L of it are neutralized by 0.0250L of a 1.5 M solution of sulfuric acid? Reaction: 2NaOH + H2SO4 → Na2SO4 + 2H2O Acid Base M= M= mol= mol= V (in L)= V (in L)=</p><p>16. What volume of 0.65 M HCl must be added to 0.0350L of l.00 M KOH to neutralize the solution? Reaction: KOH + HCl → KCl + H2O Acid Base M= M= mol= mol= V (in L)= V (in L)=</p><p>+ - Calculating the [H ] and [OH ] using Kw 22. If [OH-]=4.5X10-2M calculate [H+]. </p><p>23. If [H+]=2.0X10-4M calculate [OH-]. </p><p>Calculating % Ionization of weak acids and bases 24. Calculate the percent ionization for a 1.0M weak acid solution if the concentration of ions is 0.025M .</p><p>25. Calculate the percent ionization for a 1.0M weak base solution if the concentration of ions is 0.050M .</p>

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