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Excess electrons are placed on a small lead sphere with a mass of 7.85 gso that...

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Physics

Excess electrons are placed on a small lead sphere with a massof 7.85 gso that its net charge is −3.30×10−9 C .

Part A.

Find the number of excess electrons on the sphere.

ne =

Part B.

How many excess electrons are there per lead atom? The atomicnumber of lead is 82, and its molar mass is 207g/mol.

nlead =

Answer & Explanation Solved by verified expert
4.3 Ratings (793 Votes)
Given that net charge on the small lead sphere is Q 330109 C and mass of the lead sphere is m 785 g A Using the formula charge Q ne where e is charge per    See Answer
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