What is the new molarity when 60. mL of 5.0 M Ba(OH)_2 is diluted to 1.0 L of solution?

Question

10th grade chem molarity problem

Answer 1

The total number of moles is

moles = Molarity * Volume = 5.0 M * .060 L = 0.30 moles

The new volume is now 1.0L, so the new molarity is

Molarity = moles/Volume = (0.30 moles) / (1.0 L) = 0.30 M