Promised earlier to post for the quality testing of soap but we cannot go direct to that in one step. We will tackle each one at a time. First we should prepare the concentration of the following metallic salts:
A. Prepare 5% by weight of NaCl, 5% by weight of FeCl3, 5% by weight of MgCl2, 5% by weight of KCl, and 5% by weight of CaCl2 or any metallic salts. Here are the steps:
1.Weigh 1 g of NaCl. Place it in a small beaker. Slowly pour distilled water up to 20 ml.
2.Repeat procedure 1 to prepare the desired concentration of the rest of the metallic salts or you may proceed to step B for my suggested concentration.
B. Prepare another concentration as the 2nd replicate this time 15% by weight. To prepare, just repeat procedure 1 and use 3 g instead of 1 g of each of the metallic salt mentioned above.
C.Prepare the 3rd replicate with a concentration of 25% by repeating procedure 1 but use 5 g of each of the mettalic salt.
Note that you can increase the concentration by using the percent by weight formula:
%m/m= mass solute/mass solution * 100%
I'l be posting soon the how to test for soap's ability to remove metallic salts.
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