A 1.3 milliliters volume of seawater contains about 4.0x10-10 grams gold the total ocean water is 1.5x1021 liters calculate mass in oceans?

The mass of gold in the oceans can be calculated by multiplying the concentration of gold in seawater by the total volume of ocean water.

Concentration of gold in seawater = 4.0 x 10-10 g/mL

Total volume of ocean water = 1.5 x 10^21 L

Mass of gold in the oceans = (4.0 x 10-10 g/mL) x (1.5 x 10^21 L)

Mass of gold in the oceans = 6.0 x 10^11 g

Therefore, the mass of gold in the oceans is approximately 6.0 x 10^11 grams.