reader7 - Chapter 5: Introduction to Reactions in Aqueous...

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Chapter 5: Introduction to Reactions in Aqueous Solutions 1, 4, 7, 15, 19, 21, 27, 28, 33, 35, 37, 39, 41, 44, 47, 49, 51, 53, 55, 57, 63, 65, 83, 93-98 From chapter 16: 9, 15 From chapter 17: 38 Strong Electrolytes, Weak Electrolytes, and Nonelectrolytes 1.” Using information from this chapter, indicate whether each of the following substances in aqueous solution is a nonelectrolyte, weak electrolyte, or strong electrolyte. (a) HC 6 H 5 O; (b) Li 2 SO 4 ; (c) MgI 2 ; (d) (CH 3 CH 2 ) 2 O; (e) Sr(OH) 2 . 4.” NH 3 (aq) conducts electric current only weakly. The same is true for HC 2 H 3 O 2 (aq). When these solutions are mixed, however, the resulting solution is a good conductor. How do you explain this? Ion Concentrations 7.” Determine the concentration of the ion indicated in each solution. (a) [K + ] in 0.238 M KNO 3 ; (b) [NO 3 ] in 0.167 M Ca(NO 3 ) 2 ; (c) [Al 3+ ] in 0.083 M Al 2 (SO 4 ) 3 ; (d) [Na + ] in 0.209 M Na 3 PO 4 .
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How many milligrams of MgI 2 must be added to 250.0 mL of 0.0876 M KI to produce a solution with [I ] = 0.1000 M? Predicting Precipitation Reactions 19.” Complete each of the following as a net ionic equation, indicating whether a precipitate forms. If no reaction occurs, so state. (a) (b) (c) 21.” Predict in each case whether a reaction is likely to occur. If so, write a net ionic equation. (a) (b) (c) Acid–Base Reactions 27.” Complete each of the following as a net ionic equation . If no reaction occurs, so state. (a)
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reader7 - Chapter 5: Introduction to Reactions in Aqueous...

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