Experimental analysis of a water softener using 4 types: water, for example, soft water medium hard water hard water very hard water, and thaitharet, for halting point.
Experimental analysis of water hardness. Water samples using 4 types of soft, medium hard water, water softener, water softener much. The titration end point
From the experimental analysis of hardness of water by using the water sample 4 types, namely, soft water, water softener, medium, hard water hard water. To find out, titration end point