Problem: 1) What is the concentration of K + in 0.15 M of K 2S?  2) If CaCl2 is dissolved in water, what can be said about the concentration of the Ca 2+ ion?a. It has the same concentration as the Cl − ion.b. Its concentration is half that of the Cl − ion.c. Its concentration is twice that of the Cl − ion.d. Its concentration is one-third that of the Cl − ion.

FREE Expert Solution
86% (258 ratings)
FREE Expert Solution
86% (258 ratings)
View Complete Written Solution
Problem Details

1) What is the concentration of K + in 0.15 M of K 2S?

2) If CaCl2 is dissolved in water, what can be said about the concentration of the Ca 2+ ion?

a. It has the same concentration as the Cl ion.

b. Its concentration is half that of the Cl ion.

c. Its concentration is twice that of the Cl ion.

d. Its concentration is one-third that of the Cl ion.

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

What is the difficulty of this problem?

Our tutors rated the difficulty of1) What is the concentration of K + in 0.15 M of K 2S?  2) I...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 2 minutes and 29 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

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