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Need this asap Constants Part A Excess electrons are placed on a small lead sphere with a mass of 7.50 g so that its net

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Constants Part A Excess electrons are placed on a small lead sphere with a mass of 7.50 g so that its net charge is -3.90x10 9 C Find the number of excess electrons on the sphere. AEQ na= Submit Request Answer Part B How many excess electrons are there per lead atom? The atomic number of lead is 82, and its molar mass is 207 g/mol. IVO AEQ 0 0 ? Plead = Submit Request

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