Answer:
(5.4 x 10³) x (1.2 x 10⁷) = 6.48 x 10¹⁰
With correct significant figures, the answer would be 6.5 x 10¹⁰.
A. electron, B. Nucleus
Proton is positive charge, electron is negative charge
proton weight, 1 AMU
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Because a copper ion looses electrons, meaning it's negatively charged, and positives and negatives attract.
Actual yield/Theoretical yield *100= Percentage yield. So Actual yield = Percentage yield*Theoretical yield.
Therefore actual yield= 90/100 * 1.09g = 0.98g
Actual yield: 0.98 g