Problem: Which will have the highest concentration of potassium ion: 0.20 M KCl, 0.15 M K2CrO4, or 0.080 M K3PO4?

FREE Expert Solution

In this problem, we are asked to find the highest concentration of the potassium ions among the solutions with a molar of 0.20 M KCl, 0.15 M K2CrO4, or 0.080 M K3PO4.


MOLARITY (M) represents the moles of solute dissolved per liters of solution.

M=moles of soluteLiters of solution


In answering this problem, we must:

Step 1. Know the individual ions in each compound.

Step 2. Find the concentration of potassium ions in each compound.

Step 3. Compare the concentrations of potassium ions in each compound.

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Problem Details

Which will have the highest concentration of potassium ion: 0.20 M KCl, 0.15 M K2CrO4, or 0.080 M K3PO4?

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

What professor is this problem relevant for?

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