Problem: What is the concentration of K+ in 0.15 M of K2S?  Express your answer to one decimal place and include the appropriate units.Ion concentration refers to the molar concentration of an ion in solution. It may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. For soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. For example, 1 M of AlCl3 is 1 M in Al3+ and 3 M in Cl− . 1 M of (NH4)2SO4 is 2 M in NH4+ and 1 M in SO42− .

FREE Expert Solution
Problem Details

What is the concentration of K+ in 0.15 M of K2S?  Express your answer to one decimal place and include the appropriate units.


Ion concentration refers to the molar concentration of an ion in solution. It may be identical to, or greater or less than, the molar concentration of the compound containing the ion that was used to make the solution. For soluble salts, the molarity of a particular ion is equal to the molarity of that compound times the subscript for that ion. For example, 1 M of AlClis 1 M in Al3+ and 3 M in Cl . 1 M of (NH4)2SO4 is 2 M in NH4and 1 M in SO42− .

Frequently Asked Questions

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 Solution Stoichiometry concept. You can view video lessons to learn Solution Stoichiometry. Or if you need more Solution Stoichiometry practice, you can also practice Solution Stoichiometry practice problems.