Understanding Molarity

Molarity (M) is a measure of concentration defined as moles of solute per liter of solution.

Formula

* Moles of solute = Molarity (M) x Volume (L)

Calculations

1. Identify the given values:

* Molarity (M) = 0.256 M

* Volume (L) = 1.5 L

2. Plug the values into the formula:

* Moles of barium chloride = 0.256 M * 1.5 L

3. Calculate the result:

* Moles of barium chloride = 0.384 moles

Answer: There are 0.384 moles of barium chloride in 1.5 liters of a 0.256 molar solution.