4. If 87 grams of K2SO4 (molar mass 174 grams) is dissolved in enough water to make 250 mL of solution, what are the concentrations of the potassium and the sulfate ions? [K*] [SO,? ] (A) (В) (C) (D) (E) 0.020 M 0.020 M 1.0 М 2.0 M 2.0 M 1.0 M 2.0 M 2.0 M 4.0 M 2.0 M

4. If 87 grams of K2SO4 (molar mass 174 grams) is dissolved in enough water to make 250 mL of solution, what are the concentrations of the potassium and the sulfate ions? [K*] [SO,? ] (A) (В) (C) (D) (E) 0.020 M 0.020 M 1.0 М 2.0 M 2.0 M 1.0 M 2.0 M 2.0 M 4.0 M 2.0 M

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter20: Electrochemistry

Section: Chapter Questions

Problem 7STP

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Question

4. If 87 grams of K2SO4 (molar mass 174 grams) is
dissolved in enough water to make 250 mL of
solution, what are the concentrations of the
potassium and the sulfate ions?
[K*]
[SO,? ]
(A)
(В)
(C)
(D)
(E)
0.020 M
0.020 M
1.0 М
2.0 M
2.0 M
1.0 M
2.0 M
2.0 M
4.0 M
2.0 M

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