If the concentration of gold in seawater is 2.0 milligram per ton of sea water and the mass of the ocean is 1.5 × 1018 tons, how much gold is in the ocean?

Question

Quizplus · Accepted Answer

The total amount of gold in the ocean can be calculated by multiplying the concentration of gold in seawater by the mass of the ocean. Given that the concentration is 2.0 mg/ton and the mass of the ocean is 1.5 × 10^18 tons, the total amount of gold is (2.0 mg/ton) × (1.5 × 10^18 tons) = 3.0 × 10^18 mg. Since there are 1,000,000 mg in a kg, this equals 3.0 × 10^12 kg of gold.

If the Concentration of Gold in Seawater Is 2