The volume of seawater on earth is about 33 x 108 mi3, Ask an Expert

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The volume of seawater on Earth is about 3.3 x 10^8 mi^3. Because it contains salts, mostly sodium chloride, its density is about 1.03 g/mL, a little higher than that of pure water. The concentration of sodium chloride is about 3.5% by mass.

(a) What is the approximate mass of sodium chloride contained in the oceans, in tons? (1 mile = 1609.344 meters; 1 ton = 907.18474 kg)

(b) What is the molar concentration of sodium chloride in seawater?

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Category:- Chemistry
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