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Ch.4 - Reactions in Aqueous Solution
Chapter 4, Problem 8

Write a net ionic equation for the reaction that occurs when 10 mL of 0.5 M ammonium carbonate is mixed with 10 mL of 0.5 M silver nitrate. (LO 4.9, 4.11) (a) (b) (c) (d) A net ionic reaction cannot be written because a reaction does not take place.

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1
<Step 1: Write the balanced molecular equation for the reaction.>
<Step 2: Identify the states of the reactants and products (solid, liquid, gas, aqueous).>
<Step 3: Write the complete ionic equation by dissociating all strong electrolytes into their ions.>
<Step 4: Identify and cancel out the spectator ions that appear on both sides of the complete ionic equation.>
<Step 5: Write the net ionic equation with the remaining species that participate in the reaction.>

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Net Ionic Equations

A net ionic equation represents the chemical species that are involved in a reaction, excluding spectator ions that do not participate in the actual chemical change. It focuses on the ions and molecules that undergo a transformation, providing a clearer picture of the reaction's essence. To write a net ionic equation, one must first identify the reactants, their states, and the products formed.
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Solubility Rules

Solubility rules are guidelines that help predict whether a compound will dissolve in water. They indicate which ionic compounds are soluble or insoluble in aqueous solutions. Understanding these rules is crucial for determining if a reaction will occur when two solutions are mixed, as insoluble products may precipitate out of solution, leading to a net ionic equation.
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Precipitation Reactions

Precipitation reactions occur when two soluble salts react in solution to form an insoluble salt, which precipitates out of the solution. This type of reaction is common in double displacement reactions, where the cations and anions exchange partners. Recognizing whether a precipitate forms is essential for writing the net ionic equation and understanding the overall reaction process.
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Related Practice
Textbook Question
Refer to the figure to answer questions 4 and 5. The images are a molecular representation of three different substances, AX3, AY3, and AZ3, dissolved in water. (Water molecules are omitted for clarity.) What are the molar concentrations of A ions and X ions in a 0.500 M solution of AX3? (LO 4.7) (a) 0.500 M A and 0.500 M X (b) 0.500 M A and 0.167 M X (c) 1.500 M A and 0.500 M X (d) 0.500 M A and 1.500 M X
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Textbook Question
Which of the following substances will produce a solution that does not conduct electricity when it dissolves in water? (LO 4.6) (a) NaOH (b) HNO3 (c) Na2SO4 (d) CH3OH
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Textbook Question
Which of the following solutions will not form a precipitate when added to 10 mL of 0.10 M KOH? (LO 4.10, 4.11) (a) 10 mL of 0.10 NH4Cl (b) 10 mL of 0.10 M PbSO4 (c) 10 mL of 0.10 M Fe(NO3)3 (d) 10 mL of 0.10 M AgCH3CO2
786
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Textbook Question
When 75.0 mL of a 0.100 M lead(II) nitrate solution is mixed with 100.0 mL of a 0.190 M potassium iodide solu-tion, a yellow-orange precipitate of lead(II) iodide is formed. What is the mass in grams of lead(II) iodide formed? Assume the reaction goes to completion. (LO 4.11, 4.15) (a) 1.729 g (b) 3.458 g (c) 4.380 g (d) 8.760 g
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Textbook Question
What volume of 0.250 M HCl is needed to react completely with 25.00 mL of 0.375 M Na2CO3? (LO 4.15) (a) 75.0 mL (b) 18.8 mL (c) 37.5 mL (d) 33.3 mL
1023
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Textbook Question
Succinic acid, an intermediate in the metabolism of food molecules, has a molecular weight of 118.1. When 1.926 g of succinic acid was dissolved in water and titrated, 65.20 mL of 0.5000 M NaOH solution was required to neutralize the acid. How many acidic hydrogens are there in a mol-ecule of succinic acid? (LO 4.16) (a) 1 (b) 2 (c) 3 (d) 4
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