Problem 66
Classify each of the following aqueous solutions as a strong or weak electrolyte: (a) \(\mathrm{Fe}\left(\mathrm{C}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\right)_{3}(a q)\) (b) \(\mathrm{AlPO}_{4}(\mathrm{~s})\) (c) \(\mathrm{Ag}_{2} \mathrm{CrO}_{4}(\mathrm{~s})\) (d) \(\mathrm{CdSO}_{4}(a q)\)
Problem 67
Write the following acids in either the ionized or the nonionized form to best represent an aqueous solution: (a) \(\mathrm{HF}(a q)\) (b) \(\mathrm{HBr}(a q)\) (c) \(\mathrm{HNO}_{3}(a q)\) (d) \(\mathrm{HNO}_{2}(a q)\)
Problem 68
Write the following bases in either the ionized or the nonionized form to best represent an aqueous solution: (a) \(\mathrm{NaOH}(a q)\) (b) \(\mathrm{NH}_{4} \mathrm{OH}(a q)\) (c) \(\mathrm{Ba}(\mathrm{OH})_{2}(a q)\) (d) \(\mathrm{Al}(\mathrm{OH})_{3}(\mathrm{~s})\)
Problem 69
Write the following salts in either the ionized or the nonionized form to best represent an aqueous solution: (a) \(\operatorname{AgF}(a q)\) (b) \(\operatorname{AgI}(s)\) (c) \(\mathrm{Hg}_{2} \mathrm{Cl}_{2}(\mathrm{~s})\) (d) \(\mathrm{NiCl}_{2}(a q)\)
Problem 70
Write the following salts in either the ionized or the nonionized form to best represent an aqueous solution: (a) \(\mathrm{AlPO}_{4}(s)\) (b) \(\mathrm{Co}\left(\mathrm{C}_{2} \mathrm{H}_{3} \mathrm{O}_{2}\right)_{3}(a q)\) (c) \(\mathrm{MnSO}_{4}(a q)\) (d) \(\mathrm{PbSO}_{4}(s)\)
Problem 71
List the four steps for writing a balanced net ionic equation.
Problem 72
What term describes ions in a total ionic equation that do not react?
Problem 75
Write a balanced net ionic equation for each of the following solution reactions. Refer to Table 5 for electrolyte information (a) \(\mathrm{AgNO}_{3}(a q)+\mathrm{KI}(a q) \longrightarrow \mathrm{AgI}(s)+\mathrm{KNO}_{3}(a q)\) (b) \(\mathrm{BaCl}_{2}(a q)+\mathrm{K}_{2} \mathrm{CrO}_{4}(a q) \longrightarrow \mathrm{BaCrO}_{4}(\mathrm{~s})+\mathrm{KCl}(a q)\)
Problem 79
The acid-base indicator methyl orange changes color from \(\mathrm{pH} 3.2\) to \(\mathrm{pH}\) 4.4. It appears red in strongly acidic solutions and yellow in basic solutions. Predict the color of the indicator in a solution having a \(\mathrm{pH}\) of 3.8.
Problem 80
The acid-base indicator bromcresol green changes color from \(\mathrm{pH} 3.8\) to \(\mathrm{pH}\) 5.4. It appears yellow in strongly acidic solutions and blue in basic solutions. Predict the color of the indicator in a solution having a \(\mathrm{pH}\) of 4.6 .
