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Chapter 3: Problem 97

Give the balanced equation for each of the following chemical reactions: a. Glucose \(\left(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\right)\) reacts with oxygen gas to produce gaseous carbon dioxide and water vapor. b. Solid iron(III) sulfide reacts with gaseous hydrogen chloride to form solid iron((III) chloride and hydrogen sulfide gas. c. Carbon disulfide liquid reacts with ammonia gas to produce hydrogen sulfide gas and solid ammonium thiocyanate \(\left(\mathrm{NH}_{4} \mathrm{SCN}\right)\)

Short Answer

Expert verified
The balanced equations for the given reactions are: a. \[\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} + 6\mathrm{O}_{2} \rightarrow 6\mathrm{CO}_{2} + 6\mathrm{H}_{2} \mathrm{O}\] b. \[2\mathrm{Fe}_{2} \mathrm{S}_{3} + 6\mathrm{HCl} \rightarrow 4\mathrm{FeCl}_{3} + 3\mathrm{H}_{2} \mathrm{S}\] c. \[\mathrm{CS}_{2} + 2\mathrm{NH}_{3} \rightarrow \mathrm{H}_{2} \mathrm{S} + 2\mathrm{NH}_{4} \mathrm{SCN}\]

Step by step solution

01

a. Balancing glucose and oxygen reaction

1. Write the unbalanced equation: \(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} + \mathrm{O}_{2} \rightarrow \mathrm{CO}_{2} + \mathrm{H}_{2} \mathrm{O}\) 2. Count the number of atoms for each element type: On the reactants side: 6 C, 12 H, 8 O. On the products side: 1 C, 2 H, 3 O. 3. Balance the equation by adjusting coefficients: \(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} + 6\mathrm{O}_{2} \rightarrow 6\mathrm{CO}_{2} + 6\mathrm{H}_{2} \mathrm{O}\) The balanced equation is: \[\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6} + 6\mathrm{O}_{2} \rightarrow 6\mathrm{CO}_{2} + 6\mathrm{H}_{2} \mathrm{O}\]
02

b. Balancing iron(III) sulfide and hydrogen chloride reaction

1. Write the unbalanced equation: \(\mathrm{Fe}_{2} \mathrm{S}_{3} + \mathrm{HCl} \rightarrow \mathrm{FeCl}_{3} + \mathrm{H}_{2} \mathrm{S}\) 2. Count the number of atoms for each element type: On the reactants side: 2 Fe, 3 S, 1 H, 1 Cl. On the products side: 1 Fe, 1 S, 2 H, 3 Cl. 3. Balance the equation by adjusting coefficients: \(2\mathrm{Fe}_{2} \mathrm{S}_{3} + 6\mathrm{HCl} \rightarrow 4\mathrm{FeCl}_{3} + 3\mathrm{H}_{2} \mathrm{S}\) The balanced equation is: \[2\mathrm{Fe}_{2} \mathrm{S}_{3} + 6\mathrm{HCl} \rightarrow 4\mathrm{FeCl}_{3} + 3\mathrm{H}_{2} \mathrm{S}\]
03

c. Balancing carbon disulfide and ammonia reaction

1. Write the unbalanced equation: \(\mathrm{CS}_{2} + \mathrm{NH}_{3} \rightarrow \mathrm{H}_{2} \mathrm{S} + \mathrm{NH}_{4} \mathrm{SCN}\) 2. Count the number of atoms for each element type: On the reactants side: 1 C, 2 S, 1 N, 3 H. On the products side: 1 N, 5 H, 2 S, 1 C. 3. Balance the equation by adjusting coefficients: \(\mathrm{CS}_{2} + 2\mathrm{NH}_{3} \rightarrow \mathrm{H}_{2} \mathrm{S} + 2\mathrm{NH}_{4} \mathrm{SCN}\) The balanced equation is: \[\mathrm{CS}_{2} + 2\mathrm{NH}_{3} \rightarrow \mathrm{H}_{2} \mathrm{S} + 2\mathrm{NH}_{4} \mathrm{SCN}\]

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Most popular questions from this chapter

a. Write the balanced equation for the combustion of isooctane \(\left(\mathrm{C}_{8} \mathrm{H}_{18}\right)\) to produce water vapor and carbon dioxide gas. b. Assuming gasoline is \(100 . \%\) isooctane, with a density of 0.692 \(\mathrm{g} / \mathrm{mL}\) , what is the theoretical yield of carbon dioxide produced by the combustion of \(1.2 \times 10^{10}\) gal of gasoline (the approximate annual consumption of gasoline in the United States)?

Methane \(\left(\mathrm{CH}_{4}\right)\) is the main component of marsh gas. Heating methane in the presence of sulfur produces carbon disulfide and hydrogen sulfide as the only products. a. Write the balanced chemical equation for the reaction of methane and sulfur. b. Calculate the theoretical yield of carbon disulfide when \(120 .\) g of methane is reacted with an equal mass of sulfur.

Aspirin \(\left(\mathrm{C}_{9} \mathrm{H}_{8} \mathrm{O}_{4}\right)\) is synthesized by reacting salicylic acid $\left(\mathrm{C}_{7} \mathrm{H}_{6} \mathrm{O}_{3}\right)\( with acetic anhydride \)\left(\mathrm{C}_{4} \mathrm{H}_{6} \mathrm{O}_{3}\right) .$ The balanced equation is $$ \mathrm{C}_{7} \mathrm{H}_{6} \mathrm{O}_{3}+\mathrm{C}_{4} \mathrm{H}_{6} \mathrm{O}_{3} \longrightarrow \mathrm{C}_{9} \mathrm{H}_{8} \mathrm{O}_{4}+\mathrm{HC}_{2} \mathrm{H}_{3} \mathrm{O}_{2} $$ a. What mass of acetic anhydride is needed to completely consume $1.00 \times 10^{2}$ g salicylic acid? b. What is the maximum mass of aspirin (the theoretical yield) that could be produced in this reaction?

A \(2.25-\) g sample of scandium metal is reacted with excess hydrochloric acid to produce 0.1502 g hydrogen gas. What is the formula of the scandium chloride produced in the reaction?

Arrange the following substances in order of increasing mass percent of carbon. a. caffeine, \(\mathrm{C}_{8} \mathrm{H}_{10} \mathrm{N}_{4} \mathrm{O}_{2}\) b. sucrose, \(\mathrm{C}_{12} \mathrm{H}_{22} \mathrm{O}_{11}\) c. ethanol, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\)
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