Dissolving of soap

The dissolving rate of soap depends on its ingredients. If the soap has better ingredients then it will dissolve faster. The researcher was trying to see which kind of soap dissolved the fastest. The experiment was conducted by placing 5 aluminum trays with equal amounts of water and soap. Then the time was recorded to see which brand of soap melted the fastest. In the experiment, it was learned that if the soaps contained a lot of the ingredient magnesium, calcium, and iron they dissolved slower because these ingredients made the dissolving process slower. ...