Solution Composition - Molarity - Mass Of Sodium Ions Circulating In Blood

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Solution Composition - Molarity - Mass Of Sodium Ions Circulating In Blood

Solutions are homogeneous mixtures. Solutions consist of *solutes* and *solvents* (the more voluminous substance into which the solute dissolves). Solution concentration measures the amount of solute per liter of the solvent. *Molarity* is a commonly used measure of solution concentration.

The total blood volume in an average adult human is 5 Liters.

What is the mass of sodium ion circulating in the blood of the average adult human, if the concentration of sodium ion in this average person is 0.135 M?

**The strings**:
S_{7}P_{1}A_{15} (containership - mass).
**The math**:

Pj Problem of Interest is of type *containership* (mass).

0.135 M of sodium ion = 0.135 mol/ L of sodium ion

So, 5 L contains 0.675 mol

molar mass of sodium = 23 g

So, O.675 mol sodium ion = 23(0.675) = 15.5 g of sodium ion.

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