A Typical Sample of Brass Is 67%(w/w) Copper and 33%(w/w)

Multiple Choice

A typical sample of brass is 67%(w/w) copper and 33%(w/w) zinc. How many moles of zinc are dissolved in 67 grams of copper?

A) 0.33 mol
B) 0.50 mol
C) 0.67 mol
D) 1.0 mol