If 8.32 g of copper is mixed with 5.2372 × 10^-2 mol of zinc to create the alloy brass, how many metal atoms total are present in the brass? A) 7.88 × 10²²metal atoms B) 3.04 × 10^-25metal atoms C) 1.10 × 10²³ metal atoms D) 3.15 × 10²²metal atoms E) 3.15 × 10^-22 metal atoms

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Quizplus · Accepted Answer

First, calculate the moles of copper: 8.32 g Cu × (1 mol Cu / 63.55 g Cu) = 0.1309 mol Cu. Then, add the moles of zinc: 0.1309 mol Cu + 0.052372 mol Zn = 0.183272 mol total. Finally, convert to atoms: 0.183272 mol × (6.022 × 10^23 atoms/mol) = 1.10 × 10^23 atoms.

If 832 G of Copper Is Mixed with 5