Question

A sample of ore is found to contain 0.0042% gold and 0.069% platinum. what is the percent of matter in the ore that is neither gold nor platinum?

Answer 1

Answer: Percent of matter in the ore that is neither gold nor platinum is 99.9268%.

Explanation:

Percent of gold in a sample of ore = 0.0042%

Percent of platinum in a sample of ore = 0.069%

So, Percent of either gold or platinum in a sample of ore is given by

$0.0042+0.069=0.0732\%$

So,

Percent of neither gold or platinum in a sample of ore is given by

$100-0.0732=99.9268\%$

Answer 2

Answer:

99.9268

Step-by-step explanation:

percent of gold in a sample of ore is 0.0042%

percent of platinum in a sample of ore is 0.069%

so percent of either gold or platinum in a sample of ore is given by

0.0042%+0.069%=0.0732%

neither gold or platinum is

100-0.0732=99.9268