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The mass of the ocean is about 1.8 X 10^21 kg. If the ocean contains 1.076% sodium ion, Na+, what is the mass in kilograms of sodium in the ocean?
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The mass of the ocean is about 1.8 X 10^21 kg. If the ocean contains 1.076% sodium ion, Na+, what is the mass in kilograms of sodium in the ocean?

User Stepan Loginov
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Mass of sodium = Mass of ocean x percentage mass of sodium
= 1.8 x 10²¹ x 1.076 / 100
= 1.94 x 10¹⁹ kg
User Swyx
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