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Ch.4 - Chemical Quantities & Aqueous Reactions
Chapter 4, Problem 111

Predict the products and write a balanced molecular equation for each reaction. If no reaction occurs, write 'NO REACTION.' b. KHSO3(aq) + HNO3(aq) c. Aqueous ammonium chloride and aqueous lead(II) nitrate.

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1
Identify the reactants in each reaction: b. Potassium bisulfite (KHSO_3) and nitric acid (HNO_3); c. Ammonium chloride (NH_4Cl) and lead(II) nitrate (Pb(NO_3)_2).
For reaction b, consider the possible products: KHSO_3 can react with HNO_3 to form KNO_3 and H_2SO_3. However, H_2SO_3 is unstable and decomposes into H_2O and SO_2 gas.
Write the unbalanced equation for reaction b: KHSO_3(aq) + HNO_3(aq) → KNO_3(aq) + H_2O(l) + SO_2(g).
Balance the molecular equation for reaction b by ensuring the number of atoms of each element is equal on both sides of the equation.
For reaction c, consider the possible products: NH_4Cl and Pb(NO_3)_2 can react to form PbCl_2, a precipitate, and NH_4NO_3. Write the balanced molecular equation: 2 NH_4Cl(aq) + Pb(NO_3)_2(aq) → PbCl_2(s) + 2 NH_4NO_3(aq).
Related Practice
Textbook Question

Aspirin can be made in the laboratory by reacting acetic anhydride (C4H6O3) with salicylic acid (C7H6O3) to form aspirin (C9H8O4) and acetic acid (C2H4O2). The balanced equation is: C4H6O3 + C7H6O3 → C9H8O4 + C2H4O2 In a laboratory synthesis, a student begins with 3.00 mL of acetic anhydride (density = 1.08 g/mL) and 1.25 g of salicylic acid. Once the reaction is complete, the student collects 1.22 g of aspirin. Determine the limiting reactant. Determine the theoretical yield of aspirin. Determine the percent yield for the reaction.

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Textbook Question

The combustion of liquid ethanol (C2H5OH) produces carbon dioxide and water. After 4.62 mL of ethanol (density = 0.789 g/mL) is allowed to burn in the presence of 15.55 g of oxygen gas, 3.72 mL of water (density = 1.00 g/mL) is collected. Determine the percent yield for the reaction. (Hint: Write a balanced equation for the combustion of ethanol.)

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Textbook Question

A hydrochloric acid solution will neutralize a sodium hydroxide solution. Look at the molecular views showing one beaker of HCl and four beakers of NaOH. Which NaOH beaker will just neutralize the HCl beaker? Begin by writing a balanced chemical equation for the neutralization reaction.

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Textbook Question

Predict the products and write a balanced molecular equation for each reaction. If no reaction occurs, write 'NO REACTION.' a. HCl(aq) + Hg2(NO3)2(aq) →

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Textbook Question

Predict the products and write a balanced molecular equation for each reaction. If no reaction occurs, write 'NO REACTION.' d. aqueous ammonium chloride and aqueous calcium hydroxide

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Open Question
Predict the products and write a balanced molecular equation for each reaction. If no reaction occurs, write “NO REACTION.” a. H2SO4(aq) + HNO3(aq) b. aqueous strontium sulfide and aqueous copper(II) sulfate.