Question

A certain rock has a mixture of several different elements. It contains 33g of zinc, 22g of

iron and 16g of oxygen. What percentage of the rock, by mass, is zinc?

Answer 1

Zinc is available in capsules, tablets, creams, ointments, and a liquid form. Adults aged 19 years and over who are interested in using zinc supplements should be careful to consume no more than 40 mg per day. Too much zinc can cause health problems.

Answer 2

46.5%

Step-by-step explanation:

mass of rock = 33g + 22g + 16g = 71g

% mass of zinc = (33/71) * 100%

= 0.465 * 100%

= 46.5%