You add 99 L to 1.0 L stock: concentrations are 100 times less.

A stock solution that is used in a dilution is known as a dilute solution. A dilute solution reduces the Ph of a chemical.

One can avoid stock dilution by keeping your shares accounted for. You need to know if the price of your shares are going up or down in your part of the company.

You add 9.09ml of stock solution to a volumetric and make it up to 1 litre to get a 110 dilution

1 part of stock+ 2part of dillution