Problem: The concentrations of Ca and Na in a sample of riverwater are 13.4 mg/kg and 5.2 mg/kg, respectively. Express the concentration in molality.

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The concentrations of Ca and Na in a sample of riverwater are 13.4 mg/kg and 5.2 mg/kg, respectively. Express the concentration in molality.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Mole Concept concept. You can view video lessons to learn Mole Concept. Or if you need more Mole Concept practice, you can also practice Mole Concept practice problems.

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Based on our data, we think this problem is relevant for Professor Paesani's class at UCSD.