Which element forms the basis of all organic compounds
1 answer:
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Answer:
0.2320V
Explanation:
Voltage can be defined as the amount of potential energy available (work to be done) per unit charge, to move charges through a conductor.
Voltage can be generated by means other than rubbing certain types of materials against each other.
Please look at attached file for solution to the problem.
The volume of sphere can be calculated using the following formula:
Here, r is radius of the sphere which is 8 cm. Putting the value,
This is equal to the volume of lead, density of lead is thus, mass of lead can be calculated as follows:
Let the mass of ore be 1 g, 68.5% of galena is obtained by mass, thus, mass of galena obtained will be 0.685 g.
Now, 86.6% of lead is obtained from this gram of galena, thus, mass of lead will be:
m=0.685×0.866=0.5932 g
Therefore, 0.5932 g of lead is obtained from 1 g of ore, if the efficiency is 100%.
For 92.5% efficiency, mass of lead obtained will be:
Thus, 1 g of lead obtain from grams of ore.
Thus, of lead obtain from:
Therefore, mass of ore required to make lead sphere is 44.2 kg.