Determine the concentrations of k2so4, k , and so42– in a solution prepared by dissolving 1.80 × 10–4 g k2so4 in 1.50 l of water. express all three concentrations in molarity. additionally, express the concentrations of the ionic species in parts per million (ppm). note: determine the formal concentration of so42–. ignore any reactions with water.

Explanation:

n = moles of compound

V =Volume of the solution in Liters

Moles of potassium sulfate ,n=

Volume of the solution = 1.50 L

Molarity of the solution =

Molarity of potassium sulfate solution:

1 mole of potassium sulfate gives 2 moles of  potassium ions and 1 mole of sulfate ions.

Molarity of potassium ions in the solution:

Molarity of sulfate ions in the solution:

Concentration in ppm:

ppm = Milligram of compo present in 1 liter solution.

ppm = Molarity × Molar mass of compound × 1000

Concentration of potassium ion in ppm:

Concentration of sulfate ions in ppm:

geosphere and hydrosphere.

this is because the geosphere has to do with geological events, while the hydrosphere controls all water on earth.

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