 The Concentrations_ macro
opens a dialog requesting the user to enter the molecular weight (MW); Mass
(specify units in drop down menu); Concentration (specify units in drop down
menu) and volume (specify units in drop down menu).
Leave the parameter you wish to calculate as zero (select desired units from
drop down menu).In this case (right) we're calculating the volume in ml
to add to a the given mass (62.5g) of a chemical (MW: 125) to give us the
desired concentration (20 mM).
Click OK.
Results are presented in a dialog. The calculated parameter marked with
asterisks. The answer is also writte to the Log window as a row or column if
the "Results as rows" option is unchecked in the first dialog.
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