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4 points a Patty needs to measure the unknown concentration of Sn2+ A Galvanic cell is set up in a room with a temperature of 319. Kelvin with a standard Zn2+/Zn(s) half cell, and a Sn(s) electrode set in a beaker of the unknown tin solution. The measured voltage is 0.581 V, and the Sn electrode is positive. What is the concentration of Sn2+ in solution? At this temperature, E' cell = 0.62 V. (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation-- examples include 1.23 and 12.3 and -123 and 123. and 120.)
What is the value of AG (kJ mol-1) for this reaction at 283.8 °C ? The data refer to 25 °C: P2 (g) + 3Cl2 (g) → 2 PC13 (9) P2(g) Substance. AHºf (kJ mol-1) Cl2(8) 0 PC13(g) -288.1 144.3 103.7 0 -269.6 AG°f (kJ mol-1) Sº (JK-1 mol-1) 218.1 223.0 311.7 (the answer should be entered with 3 significant figures; do not enter units; give answer in normal notation-examples include 1.23 and 120. and -123 and 123. and 12.3)