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Chapter 11: Q21P (page 477)

Hydrogen sulfide can be removed from natural gas byreaction with excess sodium hydroxide. Name the salt thatis produced in this reaction. (Note: Hydrogen sulfide losesboth its hydrogen atoms in the course of this reaction.)

Short Answer

Expert verified

Hydrogen sulfide reacts with sodium hydroxide to form sodium sulfide.

Step by step solution

01

Hydrogen sulfide.

In the laboratory, when aluminum sulfide reacts with water, it forms hydrogen sulfide.

${6H}_{2} O + {Al}_{2} S_{3} \to 3 H_{2} S + 2 Al (OH)$

02

Reaction of hydrogen sulfide and sodium hydroxide.

When hydrogen sulfide reacts with sodium hydroxide, it forms salt known as sodium sulfide

$H_{2} S + 2 NaOH \to {Na}_{2} S + 2 H_{2} O$

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Most popular questions from this chapter

Potassium dichromate in acidic solution is used to titrate a solution of iron(II) ions, with which it reacts according to

${Cr}_{2} O_{7}^{2 -} (aq) + 6 {Fe}^{2 +} (aq) + 14 H {}_{3}{O^{+}} (aq) \to 2 {Cr}^{3 +} (aq) + 6 {Fe}^{3 +} (aq) + 21 H_{2} O (l)$

A potassium dichromate solution is prepared by dissolving 5.134 g $K_{2} {Cr}_{2} O_{7}$ of in water and diluting to a total volume of 1.000 L. A total of 34.26 mL of this solution is required to reach the endpoint in a titration of a 500.0-mL sample containing ${Fe}^{2 +} (aq)$ . Determine the concentration of in the original solution.

The following balanced equations represent reactions that occur in aqueous acid. Break them down into balanced oxidation and reduction half-equations.

(a) $4 {PH}_{3} (g) + 4 H_{2} O (l) {+ 4 CrO}_{4}^{2 -} (aq) \to P_{4} (s) + 4 Cr {(OH)}_{4}^{-} (aq) + 4 {OH}^{-} (aq)$

(b) ${NiO}_{2} (s) + 2 H_{2} O (l) + Fe (s) \to Ni {(OH)}_{2} (s) + Fe {(OH)}_{2} (s)$

(c) ${CO}_{2} (g) + 2 {NH}_{2} OH (aq) \to CO (g) + N_{2} (g) + 3 H_{2} O (g)$

Question: Refer to the data of Problem 62. Calculate the mole fraction of toluene in a mixture of benzene and toluene that boils at 90° C under atmospheric pressure.

Complete and balance the following equations for reactions taking place in an acidic solution.

(a) ${VO}_{2}^{+} (aq) {+ SO}_{2} (g) \to {VO}^{2 +} {(aq) + SO}_{4}^{2 -} (aq)$

(b) ${Br}_{2} {(l) + SO}_{2} (g) \to {Br}^{-} {(aq) + SO}_{4}^{2 -} (aq)$

(c) ${Cr}_{2} O_{7}^{2 -} {(aq) + Np}^{4 +} (aq) \to {Cr}^{3 +} {(aq) + NpO}_{2}^{2 +} (aq)$

(d) ${HCOOH(aq) + MNO}_{4}^{-} (aq) \to {CO}_{2} {(g) + Mn}^{2 +} (aq)$

(e) ${Hg}_{2} {HPO}_{4} {(s) + Au(s) + Cl}^{-} (aq) \to {Hg(l) +H}_{2} {PO}_{4}^{-} {(aq) + AuCl}_{4}^{-} (aq)$

At $25^{0} C$ , some benzene $(C_{6} H_{6})$ is added to a sample of gascous methane $({CH}_{4})$ at 1.00 atmpressure in a closed vessel, and the vessel is shaken until as much methane as possible dissolves. Then 1.00 kg of the solution is removed and boiled to expel the methane, yielding the volume of methane that results is 0.510 L atrole="math" localid="1663672111295" $0^{0} C$ and 1.00 atm . Determine the Henry's law constant for methane in benzene.

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