A typical sample of brass is 67% copper and 33% zinc. How many moles of zinc are disolved in 67 grms of copper

0.33 moles
0.50 moles
0.67moles
1.0 moles

Answer:
Divide 33 grams of zinc by its atomic weight to get moles of zinc.
33g Zn = about 0.5 mole Zn (33/65.38=0.5047 =mole)
0.50 moles

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