In an experiment, a student needs 250.0 mL of a 0.100 M copper (II) chloride solution. A stock solution of 2.00 M copper (II) chloride is available. How much of the stock solution is needed

Answer : The volume of stock solution needed are, 12.5 mL

Explanation :

Formula used :

where,

are the initial molarity and volume of copper (II) chloride.

are the final molarity and volume of stock solution of copper (II) chloride.

We are given:

Putting values in above equation, we get:

Hence, the volume of stock solution needed are, 12.5 mL

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explanation:

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.