How much tin is needed to make a bronze piece that will contain 475 g of copper? Bronze is 90% Cu and 10% Sn by mass.

Question

Quizplus · Accepted Answer

Since the bronze piece is 90% copper, it must contain 475 g / 0.9 = 527.8 g of bronze in total. This means that the remaining 10% (by mass) of the bronze must come from tin. We can set up a proportion to find the amount of tin needed:

(10/100) x Mass of Bronze = Mass of Tin
(10/100) x 527.8 g = 52.8 g

Therefore, 52.8 g of tin is needed to make the bronze piece containing 475 g of copper.

How Much Tin Is Needed to Make a Bronze Piece