3. What mass of each of the following substances can be produced in 1.0 h with a current of 10 A? a. Co from aqueous Co²* b. I2 from aqueous KI. 4. Aluminum is produced commercially by the electrolysis of Al½O3 in the presence of a molten cryolite salt. If a plant has a continuous capacity of 10° A, what mass of aluminum can be produced in 2.00 h? 5. In the electrolysis of an aqueous solution of Na2SO4, what reactions occur at the anode and the cathode (assuming standard conditions)? 8° S,0g? + 2e¯ S,Og² 2SO,²- 2.01 V

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Qualitative analysis of anions

Qualitative analyses are mainly used for the determination of anions and cations present in the given sample. This analysis is a type of analytical chemistry that is used to determine the elemental composition present in the inorganic compounds via different reagents.