Question

Describe, in detail, how to make 3.0 liters of a 0.98 molar HCl solution from a 10.5 molar HCl stock solution.

Answer 1

you know,

You want,
3.0L
0.98M

you have,
10.5M

You can use ratios to solve this,

\[\frac{Concentration Wanted}{Volume Wanted} = \frac{Stock Concentration}{Aliquot Needed}\]

Alternatively, you can simplify this formula by simply multiplying your final volume by a ratio of concentrations to find the volume of your aliquot

\[(\frac{StockConcentration}{ConcentrationWanted})VolumeWanted = Aliquot Needed\]