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Chapter 3: Problem 95

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 are: a. \( C_{6}H_{12}O_{6} + 6O_{2} \rightarrow 6CO_{2} + 6H_{2}O \) b. \( Fe_{2}S_{3} + 6HCl \rightarrow 2FeCl_{3} + 3H_{2}S \) c. \( CS_{2} + 4NH_{3} \rightarrow H_{2}S + 2NH_{4}SCN \)

Step by step solution

01

1. Write the unbalanced equation for reaction (a)

For reaction (a), the unbalanced equation can be represented as: \( C_{6}H_{12}O_{6} + O_{2} \rightarrow CO_{2} + H_{2}O \)
02

2. Balance the equation for reaction (a)

To balance the equation, we will make sure that the number of atoms of each element is equal on both sides of the equation. \( C_{6}H_{12}O_{6} + 6O_{2} \rightarrow 6CO_{2} + 6H_{2}O \)
03

3. Write the unbalanced equation for reaction (b)

For reaction (b), the unbalanced equation can be represented as: \( Fe_{2}S_{3} + HCl \rightarrow FeCl_{3} + H_{2}S \)
04

4. Balance the equation for reaction (b)

To balance the equation, let's adjust the coefficients to match the number of atoms of each element on both sides. \( Fe_{2}S_{3} + 6HCl \rightarrow 2FeCl_{3} + 3H_{2}S \)
05

5. Write the unbalanced equation for reaction (c)

For reaction (c), the unbalanced equation can be represented as: \( CS_{2} + NH_{3} \rightarrow H_{2}S + NH_{4}SCN \)
06

6. Balance the equation for reaction (c)

To balance the equation, let's adjust the coefficients to match the number of atoms of each element on both sides. \( CS_{2} + 4NH_{3} \rightarrow H_{2}S + 2NH_{4}SCN \) The balanced equations are: a. \( C_{6}H_{12}O_{6} + 6O_{2} \rightarrow 6CO_{2} + 6H_{2}O \) b. \( Fe_{2}S_{3} + 6HCl \rightarrow 2FeCl_{3} + 3H_{2}S \) c. \( CS_{2} + 4NH_{3} \rightarrow H_{2}S + 2NH_{4}SCN \)

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Most popular questions from this chapter

The compound \(\mathrm{As}_{2} \mathrm{I}_{4}\) is synthesized by reaction of arsenic metal with arsenic triiodide. If a solid cubic block of arsenic \(\left(d=5.72 \mathrm{~g} / \mathrm{cm}^{3}\right)\) that is \(3.00 \mathrm{~cm}\) on edge is allowed to react with \(1.01 \times 10^{24}\) molecules of arsenic triiodide, what mass of \(\mathrm{As}_{2} \mathrm{I}_{4}\) can be prepared? If the percent yield of \(\mathrm{As}_{2} \mathrm{I}_{4}\) was \(75.6 \%\), what mass of \(\mathrm{As}_{2} \mathrm{I}_{4}\) was actually isolated?

The compound adrenaline contains \(56.79 \% \mathrm{C}, 6.56 \% \mathrm{H}\), \(28.37 \% \mathrm{O}\), and \(8.28 \% \mathrm{~N}\) by mass. What is the empirical formula for adrenaline?

Zinc and magnesium metal each reacts with hydrochloric acid to make chloride salts of the respective metals, and hydrogen gas. A \(10.00-\mathrm{g}\) mixture of zinc and magnesium produces \(0.5171 \mathrm{~g}\) of hydrogen gas upon being mixed with an excess of hydrochloric acid. Determine the percent magnesium by mass in the original mixture.

Elixirs such as Alka-Seltzer use the reaction of sodium bicarbonate with citric acid in aqueous solution to produce a fizz: \(3 \mathrm{NaHCO}_{3}(a q)+\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{7}(a q) \longrightarrow\) $$ 3 \mathrm{CO}_{2}(g)+3 \mathrm{H}_{2} \mathrm{O}(l)+\mathrm{Na}_{3} \mathrm{C}_{6} \mathrm{H}_{3} \mathrm{O}_{7}(a q) $$ a. What mass of \(\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{7}\) should be used for every \(1.0 \times 10^{2}\) \(\mathrm{mg} \mathrm{NaHCO}_{3} ?\) b. What mass of \(\mathrm{CO}_{2}(\mathrm{~g})\) could be produced from such a mixture?

What amount (moles) is represented by each of these samples? a. \(20.0 \mathrm{mg}\) caffeine, \(\mathrm{C}_{8} \mathrm{H}_{10} \mathrm{~N}_{4} \mathrm{O}_{2}\) b. \(2.72 \times 10^{21}\) molecules of ethanol, \(\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}\) c. \(1.50 \mathrm{~g}\) of dry ice, \(\mathrm{CO}_{2}\)
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