Question

In a chemical compound, there are 3 parts zinc for every 16 parts copper, by mass. A piece of the compound contains 320 grams copper. Write and solve an equation to determine the amount of zinc in the chemical compound.

Answer 1

Answer:

Chemical compound has 60 grams zinc for 320 grams of copper.

Step-by-step explanation:

In the given chemical compound:

Ratio of Zinc : Copper = 3 : 16

Let us assume the compound has m parts zinc for 320 parts copper.

⇒Ratio of Zinc : Copper = m : 320

Now, by the Ratio of Proportionality:

3 : 16  = m : 320

$\implies\frac{3}{16}  = \frac{m}{320}\\ \implies m =\frac{3}{16}  \times 320 = 60$

or, m =  60

Hence, chemical compound has 60 grams zinc for 320 grams of copper.