Dilution Chemistry Example 3

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Example 3

easy
You dilute 50 mL50\,\text{mL} of 4.0 M NaOH4.0\,\text{M NaOH} to a final volume of 200 mL200\,\text{mL}. What is the new concentration?

Solution

  1. 1
    M2=M1V1V2=4.0×50200M_2 = \frac{M_1 V_1}{V_2} = \frac{4.0 \times 50}{200}.
  2. 2
    M2=1.0 MM_2 = 1.0\,\text{M}.

Answer

1.0 M1.0\,\text{M}
Quadrupling the volume reduces the concentration to one-quarter of the original.

About Dilution

The process of decreasing the concentration of a solution by adding more solvent while keeping the total amount of solute constant.

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More Dilution Examples

Example 1 easy

How much water must be added to [formula] of [formula] to make a [formula] solution?

Example 2 medium

A stock solution of [formula] is [formula]. What volume is needed to prepare [formula] of [formula]

Example 4 easy

How much [formula] hydrochloric acid is needed to prepare [formula] mL of [formula] HCl?

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