QUESTION 31 The value of Eº for the following reaction is .189v. What is the value of Ecell given the concentrations shown? 4H+ (aq) + Fe(s) + NO3-¹ (aq) ---> 2H20 (1) Eº = .189v Fe+3(aq) + 1.0 M 0.1 M 0.6 M O.112 v O.266v .189v O.215v NO (aq) 0.5 M +

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Q: Q12. Which of the following does involve a chemical change? A. Dissolving NaBr in H₂O C. CH4 burning…

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Q: Write the chemical equations for the reaction of 2,4-Dinitrophenylhydrazine with acetone.

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Q: OH лауа 5-ба ОН CN

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Batteries

A battery is simply an electrochemical cell or group of cells that generate electric current. Batteries are the devices that generate current using redox reactions. These reactions proceed by the transfer of electrons. An ideal battery or cell should produce a constant voltage. A battery should actually be light in weight.