Question

Asked Oct 29, 2019

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Convert the composition of the following alloy from atom percent to weight percent (a) 44.9 at% of silver, (b) 46.3 at% of gold, and (c) 8.8 at% of copper. The atomic weights for silver, gold, and copper are 107.87, 196.97, and 63.55 g/mol, respectively.

Step 1

Assume that there are 100 mol of composition.

Mass of Ag = mol x molecular mass = 44.9 mol x 107.87 g/mol = 4843.363 g

Mass of Au = 46.3 mol x 196.97g/...

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