According to the concept of molar concentration if molarity is 0.580 M then there are 0.566 g of potassium ions in solution.
Molar concentration is defined as a measure by which concentration of chemical substances present in a solution are determined. It is defined in particular reference to solute concentration in a solution . Most commonly used unit for molar concentration is moles/liter.
The molar concentration depends on change in volume of the solution which is mainly due to thermal expansion. Molar concentration is calculated by the formula, molar concentration=mass/ molar mass ×1/volume of solution in liters.
In terms of moles, it's formula is given as molar concentration= number of moles /volume of solution in liters.In the given example, mass of potassium ion is calculated as, 0.580×39.09/400=0.566 g .
Hence, 0.566 g of potassium ion is present in solution if molarity is 0.580 M.
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