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Ch.5 - Introduction to Solutions and Aqueous Solutions
Tro - Chemistry: A Molecular Approach 6th Edition
Tro6th EditionChemistry: A Molecular ApproachISBN: 9780137832217당신이 사용하는 게 아니라요?교과서 변경
모든 교과서Tro 6th EditionCh.5 - Introduction to Solutions and Aqueous Solutions문제 48
5장, 문제 48

Classify each compound as a strong electrolyte or nonelectrolyte. a. K2SO4 b. C6H12O6 c. K2CO3 d. CH3OH

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1
Identify the type of compound: ionic or molecular. Ionic compounds typically dissociate in water, while molecular compounds do not.
For K_2SO_4, recognize it as an ionic compound composed of K^+ and SO_4^{2-} ions, which dissociates completely in water, classifying it as a strong electrolyte.
For C_6H_{12}O_6, recognize it as a molecular compound (glucose), which does not dissociate into ions in water, classifying it as a nonelectrolyte.
For K_2CO_3, recognize it as an ionic compound composed of K^+ and CO_3^{2-} ions, which dissociates completely in water, classifying it as a strong electrolyte.
For CH_3OH, recognize it as a molecular compound (methanol), which does not dissociate into ions in water, classifying it as a nonelectrolyte.

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주요 개념

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Electrolytes

Electrolytes are substances that dissociate into ions when dissolved in water, allowing the solution to conduct electricity. Strong electrolytes completely ionize in solution, while weak electrolytes partially ionize. Understanding the distinction between these types is crucial for classifying compounds based on their ability to conduct electricity.
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Electrolytes and Strong Acids

Strong Electrolytes

Strong electrolytes are typically ionic compounds that fully dissociate into their constituent ions in aqueous solution. Examples include soluble salts like potassium sulfate (K2SO4) and potassium carbonate (K2CO3). Recognizing strong electrolytes is essential for determining which compounds will significantly affect the conductivity of a solution.
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가이드 코스
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Electrolytes and Strong Acids

Nonelectrolytes

Nonelectrolytes are substances that do not dissociate into ions in solution and therefore do not conduct electricity. Common examples include sugars like glucose (C6H12O6) and alcohols like methanol (CH3OH). Identifying nonelectrolytes is important for understanding the behavior of different compounds in solution and their impact on electrical conductivity.
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Determine whether each compound is soluble or insoluble. If the compound is soluble, list the ions present in solution. a. AgI b. Cu3(PO4)2 c. CoCO3 d. K3PO4

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A 55.0-mL sample of a 0.102 M potassium sulfate solution is mixed with 35.0 mL of a 0.114 M lead(II) acetate solution and this precipitation reaction occurs: K2SO4(aq) + Pb(C2H3O2)2(aq) → 2 KC2H3O2(aq) + PbSO4(s) The solid PbSO4 is collected, dried, and found to have a mass of 1.01 g. Determine the limiting reactant, theoretical yield, percent yield.

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Determine whether each compound is soluble or insoluble. If the compound is soluble, list the ions present in solution. a. AgNO3 b. Pb(C2H3O2)2 c. KNO3 d. (NH4)2S

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A 25.0-mL sample of a 1.20 M potassium chloride solution is mixed with 15.0 mL of a 0.900 M lead(II) nitrate solution and this precipitation reaction occurs: 2 KCl(aq) + Pb(NO3)2(aq) → PbCl2(s) + 2 KNO3(aq) The solid PbCl2 is collected, dried, and found to have a mass of 2.45 g. Determine the the percent yield.

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For each compound (all water soluble), would you expect the resulting aqueous solution to conduct electrical current? a. RbBr b. Na3OH c. C12H22O11 d. MgSO4

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