1. the most useful ore of aluminum is bauxite, in which al is present as hydrated oxides, al2o3⋅xh2o the number of kilowatt-hours of electricity required to produce 4.00kg of aluminum from electrolysis of compounds from bauxite is when the applied emf is 5.00v. 2. the most useful ore of aluminum is bauxite, in which al is present as hydrated oxides, the number of kilowatt-hours of electricity required to produce of aluminum from electrolysis of compounds from bauxite is when the applied emf is a. 59.6 b. 0.0168 c. 0.0596 d. 19.9 e. 39.7

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Option A: 59.6

Explanation:

Step 1: Data given

Mass of aluminium = 4.00 kg

The applied emf = 5.00 V

watts = volts * amperes

Step 2: Calculate amperes

equivalent mass of aluminum = 27 / 3 = 9  

mass of deposit = (equivalent mass x amperes x seconds) / 96500

4000 grams = (9* amperes * seconds) / 96500

amperes * seconds = 42888888.9

1 hour = 3600 seconds

amperes * hours = 42888888.9 / 3600 = 11913.6

amperes = 11913.6 / hours

Step 3: Calculate kilowatts

watts = 5 * 11913.6 / hours

watts = 59568 (per hour)

kilowatts = 59.6 (per hour)

The number of kilowatt-hours of electricity required to produce 4.00kg of aluminum from electrolysis of compounds from bauxite is 59.6 kWh when the applied emf is 5.00V

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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