Enter electrons as e". Use smallest possible integer coefficients. States are not required. If a box is not needed, leave it blank. An aqueous Nil, solution is electrolyzed under 1 bar pressure using platinum electrodes. (a) Write the half-reactions predicted to occur at the anode and cathode, based on the standard cell potentials given below. Standard Reduction Potentials (Volts) at 25 °C I2(s) + 2 e 2I'(aq) 0.535 02(g) + 4 H30 (aq) + 4 e→ 6 H0M 1.229 2 H2O(1) + 2 e - H2(g) + 2 OH (aq) -0.828 Ni*(aq) + 2 e–→ Ni(s) |-0.250 Half-reaction at anode: Half-reaction at cathode: (b) What is the expected decomposition potential? V

Write the chemical equation that describes the dissolution of alum in water and describe how many moles of aluminum and sulfate ions are produced when 1 mole of alum dissolves in sufficient water?

Given that tin is higher than copper on the activity series of metals, write the one & only possible balanced chemical equation for a redox single replacement reaction that should take place in a reaction between TWO of the following substances: Sn(s); Cu(s); Sn(NO3)2; CuCl2(aq). Also: A solid forms in the reaction. What do you think or what is the solid?

5:15 1 ull 4G Discussion Assignment #6 O o o INFO DISCUSSION Discussion Assignment #6 Due:Wednesday, 14 Oct 2020, 3:00 PM In titration, one solution is added to another solution until a chemical reaction between the components in the solutions has run to completion. The solution being added is called the titrant, and we say that it solution. The completion of the reaction is usually shown by a change of color caused by a substance called an indicator. used titrate the other A typical titration proceeds in the following way. A specific volume of the solution to be titrated is poured into an Erlenmeyer flask. For example, 15.0 mL of a sulfuric acid solution of unknown concentration is added to a 250 mL Erlenmeyer flask. An indicator is then added to the flask, which changes color when the reaction is complete. The titrant in this example is potassium hydroxide, having a concentration of 0.121 M. The titrant is added to a buret. After slowly adding the titrant to the flask, the reaction…

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