Seawater contains 8.1×10−3 g Sr2+ per kilogram of water. What is the concentration of Sr2+ measured in ppm?

Answer : The concentration of Sr²⁺ in ppm is, 8.1 ppm

Explanation : Given,

Mass of solute (Sr²⁺) = 8.1 × 10⁻³ g

Mas of solution = 1 kg = 1000 g

Parts per million (ppm) : It is defined as the mass of a solute present in one million (10⁶) parts by the mass of the solution.

Formula used :

Now put all the given values in this formula, we get

Hence, the concentration of Sr²⁺ in ppm is, 8.1 ppm

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