Concept explainers
The following problems are related to the topics in this chapter. However, they do not all follow the chapter order, and they require you to combine concepts and skills from several sections. These problems will help you increase your critical thinking skills and prepare for your next exam.
15.79 The following unbalanced reaction takes place in acidic solution:
a. Write the balanced equation.
b. How many liters of
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Basic Chemistry
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- (7.2b) Complete and balance the following by ion-electron method. Reactions are taking place in alkaline solution. b) Cr(OH)a) + Clo (aq) - Cro, 2(aq) • Clzup Analysis: Balancing under acidic condition first (adding Hy0 & H") Oxidation-Half reation: Balancing atoms & charges: Cr(OH)y) * H20 - Cro, ng) + H' Reduction-Half reation: Balancing atoms and charges: CIo (aq) e Clp H20 Balancing electrons lost & gained Multiply oxidation-half reaction by e's Multiply reduction-half reaction by e's Final balanced equation: Continue next page.arrow_forward(7.2b) Complete and balance the following by ion-electron method. Reactions are taking place in alkaline solution. b) Cr(OH)a) + CIO (nq) - Cro, (aq) Analysis: Balancing under acidic condition first (adding H30 & H") Oxidation-Half reation: Balancing atoms & charges: Cr(OH)x) * H20 - Cro, ug * H' + Reduction-Half reation: Balancing atoms and charges: 10 taq H20 Balancing electrons lost & gained Multiply oxidation-half reaction by Multiply reduction-half reaction by e's Final balanced equation: Continue next page.arrow_forwardGiven the following equilibrium constants at 433°C, 1 Na20(s) = 2 Na(1) +02 (9) K1 = 5 x 10-25 2 1 NaO(g) - Na(1)+;02(9) K2 8 x 10-5 -29 Na2 O2 (s) = 2 Na(1) + O2 (9) NaO2 (s) = Na(1) + O2 (9) K3 = 4 × 10 -14 KĄ 3 x 10 determine the values for the equilibrium constants for the following reactions: a. Na20(s) + 1 O2 (g) = Na2 O2 (8) Equilibrium constant = b. NaO(g) + Na, 0(s) = Na2O2(s) + Na(1) Equilibrium constant c. 2 NaO(g) = Na2 O2 (s) Equilibrium constant = (Hint: When reaction equations are added, the equilibrium expressions are multiplied.)arrow_forward
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