Essay on The Experiment : Solvent Abilities

1464 Words Sep 12th, 2015 null Page
On the experiment 1 solvent abilities: All solutes were expected to dissolve in water because water is known as “universal solvent.” Observation showed that many salts and sugars were able to fully dissolve in the water solvent, but corn oil did not (Figure1).The reason salts would dissolve into water solvent because water molecule carried partial positive charge on hydrogen atom and partial negative charge on oxygen atom; they could react with cation and anion from salts that have ionic bonds (Reece, etc. 2011). Therefore, salts such as sodium chloride magnesium sulfate would fully dissolve. Our data indicated that sodium chloride was not fully dissolved (Table 1), which it was not expected. That could be caused from adding too much salts into a little bit amount of water. Water solvent became over saturated; that lead to sodium chloride not fully dissolve. Other than that, this experiment was done with groupmates. Salts were obtained by different people in the group. Although a little amount of solutes was specified, one might be added more than the others. That could contribute to the outcome. Besides that, sugars are nonionic polar molecules, they were able to dissolve into polar solvent such as water, which it met the expectation. Experiment showed that corn oil did not dissolve into water (Table 1). Corn oil is hydrophobic to water because corn oil contains relatively nonpolar molecules between carbon atom and hydrogen atom on its molecules, and they equally…

Related Documents