Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Transcribed Image Text:When the Pb2+ concentration is 1.21 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 0.692V. What is the Cr*
concentration?
3PB2*(aq) + 2Cr(s)-
→3P6(s) + 2Cr³*(aq)
3+
Answer:
M
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- When the Pb²+ concentration is 3.44×104 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 2.137V. What is the Mg²+ concentration? Pb²+(aq) + Mg(s)- Answer: M Pb(s) + Mg²+ (aq)arrow_forwardWhen the Hg2+ concentration is 1.07 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.664V. What is the Cr3+ concentration?3Hg2+(aq) + 2Cr(s)→ 3Hg(l) + 2Cr3+(aq)Answer: ___ Marrow_forwardWhat is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the Hg2+ concentration is 5.31×104 M and the Mg2+ concentration is 1.30 M? Hg2+(aq) + Mg(s) Answer: Hg(1) + Mg2+(aq) V བ The cell reaction as written above is spontaneous for the concentrations given: Submit Answer true falsearrow_forward
- What is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the H, pressure is 3.37×10-3 atm, the H* concentration is 1.04M, and the Mg2+ concentration is 7.01×10-4M ? 2H (аq) + Mg(s)—— Н2(g) + - Mg2*(aq) Answer: The cell reaction as written above is spontaneous for the concentrations give v true false Submit Answer Retry Entire Group 9 more group attempts remainingarrow_forwardWhen the Cu2+ concentration is 1.35 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.638V. What is the Mn2+ concentration?Cu2+(aq) + Mn(s) Cu(s) + Mn2+(aq) Answer: Marrow_forwardWhat is the calculated value of the cell potential at 298K for an electrochemical cell with the following reaction, when the H, pressure is 7.14x10-3 atm, the H* concentration is 1.24M, and the Mg+ concentration is 6.01x10-M ? 2H (aq) + Mg(s)–H2(g) + Mg*"C *(aq) Answer: -0.164 V The cell reaction as written above is spontaneous for the concentrations given: false varrow_forward
- When the Hg2+ concentration is 1.33 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 3.335V. What is the Mg2+ concentration?Hg2+(aq) + Mg(s) =>Hg(l) + Mg2+(aq)Answer: Marrow_forwardWhen the Pb2+ concentration is 1.15 M, the observed cell potential at 298K for an electrochemical cell with the following reaction is 1.609V. What is the AI3+ concentration? 3PB2+(aq) + 2AI(s)3Pb(s) + 2AI3+(aq) Answer: Marrow_forward
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