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A solution is made by dissolving 8424 mg of sodium chloride, NaCl, in 0.1711 kg of water. What is the concentration in parts per billion?

A solution is made by dissolving 8424 mg of sodium chloride, NaCl, in 0.1711 kg of water. What is the concentration in parts per billion? Key Concept: Solution concentration is often measured as a weight fraction of solute, i.e. the weight of solute divided by the weight of the solution. It can be expessed as %, ppm, ppb by multiplying the mass ratio by 100, 106, or 109 respectively. Solution:

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