Answer this (show your solution)A certain player won third place in his game ,and he was given a bronze medal made from copper and zinc.What is the mass percent of zinc in a bronze medal made by adding 22.5 g of zinc to 427.5 g of copper?
Answer (1)
To solve for mass percent of zinc:[tex]\mathsf{Mass\ percent = \left( \dfrac{mass\ of\ zinc}{total\ mass} \right) \times 100}[/tex][tex]\mathsf{= \left( \dfrac{22.5}{22.5 + 427.5} \right) \times 100}[/tex][tex]\mathsf{= \left( \dfrac{22.5}{450} \right) \times 100}[/tex][tex]\mathsf{= 0.05 \times 100}[/tex][tex]\mathsf{= 5\%}[/tex][tex]\boxed{\mathsf{5\%}}[/tex]Therefore the mass percent of zinc in bronze medal is 5%.
