Earth’s oceans have an average depth of 3800 m, a total surface area of 3.63x10⁸ km², and an average concentration of dissolved gold of 5.8x10⁻⁹ g/L.
(b) How many cubic meters of gold are in the oceans?

Respuesta :

The answer is 8x10¹²grams are equal to one gram of gold.

The amount of gold in the ocean must be calculated in grams. The amount of dissolved gold is expressed as grams per Liter. Therefore, we must first determine the ocean's volume in Liters. We can determine the ocean's volume. By dividing the area by the depth, we may first determine the ocean's volume.

A = 3.63 x 10⁸ km2 = 3.63 x 10¹⁴ m2

V = AxL

V = 3.63 x 10¹⁴ x 3800

= 1.3 797 x 1018 m³

= 1.3 797 x 10¹²L

then we multiply the volume in liters by the amount of gold present in each liter, which is equal to grams of gold, which is equal to

1.3797 x 10¹² x 5.8 x 10⁻⁹

= 8 x 10¹² g.

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