Chemistry:molarity;how many moles

Question

How many moles are in a beaker containing 250 mL of a 0.50 M solution?

Answer 1

Hello, Nena,

Molarity is defined as moles/liter. 0.50M is 0.50 moles/liter.

Convert 250 ml to 0.25L and then multiply by the concentration:

(0.250L)*)0.50moles/L) = 0.125 moles

Use the units to determine what steps are needed to get the desired answer.

Bob