QUESTION 34A homogeneous solution contains copper(II) ions (Cu2+), silver ions (Ag*) and potassium ions (K*). You have sodium bromide (NaBr) and sodium sulfide (Na2S) available touse. What should you add and in what order to separate the three metal ions?Ksp (sulfides)6.0x10-376.0x10-51solubleKsp (bromides)CuSCuBr2solubleAg25.x10-13רsolubleAgBrK25KBrO 1. Add NaBr; AgBr precipitates out and can be separated; 2. Add Na S; CuS precipitates out and can be separated; leaving K*(aq).O 1. Add NaBr; CuBr2 precipitates out and can be separated; 2. Add Na2S; Ag2S precipitates out and can be separated; leaving K*(aq).O 1. Add NazS; CuS precipitates out and can be separated; 2. Add NaBr; AgBr precipitates out and can be separated; leaving K*(aq).O 1. Add NazS; K25 precipitates out and can be separated; 2. Add NaBr; CuBr2 precipitates out and can be separated; leaving Ag*(aq).

In this method mixture of different cations can be separated by precipitation technique.

QUESTION 34 A homogeneous solution contains copper(II) ions (Cu2+*), silver ions (Ag*) and potassium ions (K). You have sodium bromide (NaBr) and sodium sulfide (NazS) available to use. What should you add and in what order to separate the three metal ions? Ksp (sulfides) 6.0x10-37 6.0x10-51 soluble Ksp (bromides) Cus CuBr2 soluble Ag25 AgBr 7.7x10-13 soluble K2S KBr O 1. Add NaBr; AgBr precipitates out and can be separated; 2. Add NazS; Cus precipitates out and can be separated; leaving K*(aq). O 1. Add NaBr; CuBr2 precipitates out and can be separated; 2. Add NazS; Ag2S precipitates out and can be separated; leaving K*(aq). O 1. Add Nazs; CuS precipitates out and can be separated; 2. Add NaBr; AgBr precipitates out and can be separated; leaving K*(aq). O 1. Add NazS; K2S precipitates out and can be separated; 2. Add NaBr; CuBr2 precipitates out and can be separated; leaving Ag*(aq).

QUESTION 34 A homogeneous solution contains copper(II) ions (Cu2+), silver ions (Ag) and potassium ions (K). You have sodium bromide (NaBr) and sodium sulfide (NazS) available to use. What should you add and in what order to separate the three metal ions? Ksp (sulfides) 6.0x10-37 6.0x10-51 soluble Ksp (bromides) Cus CuBr2 soluble Ag25 AgBr 7.7x10-13 soluble K2S KBr O 1. Add NaBr; AgBr precipitates out and can be separated; 2. Add NazS; Cus precipitates out and can be separated; leaving K(aq). O 1. Add NaBr; CuBr2 precipitates out and can be separated; 2. Add NazS; Ag2S precipitates out and can be separated; leaving K(aq). O 1. Add Nazs; CuS precipitates out and can be separated; 2. Add NaBr; AgBr precipitates out and can be separated; leaving K(aq). O 1. Add NazS; K2S precipitates out and can be separated; 2. Add NaBr; CuBr2 precipitates out and can be separated; leaving Ag(aq).

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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