Ateequrraheman2002g, I don't know of any rooting powder that can be used as a liquid. Those are normally formulated to a particular strength and used dry.
Buying a liquid concentrate will be your best bet. I'm not sure you'll want to mix up a litre as it takes very little hormone to do the job and once mixed you need to use it within a day or so.
Should you need large amounts of a rooting liquid your best bet would be to make a tea using willow leaves and stems .
Hope this helps.
Shoe.
