How many electrons must be removed from each of two 15.0 g copper spheres so that electrostatic force is balanced by gravitational force.?
Added by Jessica S.
Step 1
First, we need to find the number of copper atoms in each sphere. The molar mass of copper (Cu) is 63.5 g/mol. So, we can find the number of moles of copper in each sphere: Number of moles = (mass of sphere) / (molar mass of Cu) = (15.0 g) / (63.5 g/mol) = 0.236 Show more…
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