A1 liter solution contains 0.428 M hypochlorous acid and 0.571 M sodiun hypochlorite. Addition of 0.471 moles of barium hydroxide will: (Assume that the volume does not change upon the addition of barium hydroxide.) O Raise the pH slightly | Lower the pH slightly | Raise the pH by several units | Lower the pH by several units O Not change the pH Exceed the buffer capacity

An aqueous solution contains 0.25 M nitrous acid. One Liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) (Select all that apply.) 0.12 mol HI 00.12 mol KOH 00.26 mol HI 0.25 mol KCl 0.26 mol KNO2

A 1 liter solution contains 0.324 M acetic acid and 0.243 M potassium acetate.Addition of 0.122 moles of hydrobromic acid will:(Assume that the volume does not change upon the addition of hydrobromic acid.) Raise the pH slightly Lower the pH slightly Raise the pH by several units Lower the pH by several units Not change the pH Exceed the buffer capacity

An aqueous solution contains 0.26 M ammonium iodide. One liter of this solution could be converted into a buffer by the addition of: (Assume that the volume remains constant as each substance is added.) (Select all that apply.) 0.25 mol NH3 0.26 mol HNO3 0.12 mol HNO3 0.25 mol Nal 0.06 mol Ca(OH)2

A1 liter solution contains 0.395 M hypochlorous acid and 0.526 M potassium hypochlorite. Addition of 0.434 moles of calcium hydroxide will: (Assume that the volume does not change upon the addition of calcium hydroxide.) O Raise the pH slightly Lower the pH slightly |Raise the pH by several units | Lower the pH by several units O Not change the pH Exceed the buffer capacity

A 1 liter solution contains 0.357 M hydrofluoric acid and 0.268 M potassium fluoride. Addition of 0.295 moles of hydrobromic acid will: (Assume that the volume does not change upon the addition of hydrobromic acid.) Raise the pH slightly O Lower the pH slightly Raise the pH by several units O Lower the pH by several units O Not change the pH O Exceed the buffer capacity

A saturated solution is made by adding excess copper (II) carbonate (CUCO3) to water. The addition of HBr would cause the solubility of the salt to [ Select ] the addition of CuBr would cause the solubility of the salt to [ Select ] and the addition of Na2SO3 would cause the solubility of the salt to [ Select ] Assume that the copper ions are not significantly acidic. [Select ] increase decrease

A 1 liter solution contains 0.485 M ammonium bromide and 0.364 M ammonia.Addition of 0.400 moles of perchloric acid will:(Assume that the volume does not change upon the addition of perchloric acid.)  Raise the pH slightly  Lower the pH slightly  Raise the pH by several units  Lower the pH by several units  Not change the pH  Exceed the buffer capacity

A buffer contains equimar amounts of acetic acid and sodium acetate. What is the pH of the buffer?

Determine the pH during the titration of 26.9 mL of 0.112 M hydroiodic acid by 0.130 M barium hydroxide at the following points: (1) Before the addition of any barium hydroxide (2) After the addition of 5.80 mL of barium hydroxide (3) At the equivalence point (4) After adding 14.7 mL of barium hydroxide