HW#1.docx - Name Varsha Sooklal ID 66280 Homework 1 1 Ions are not the only hydrophilic molecules as many other substances are water soluble This other

HW#1.docx - Name Varsha Sooklal ID 66280 Homework 1 1 Ions...

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Name: Varsha Sooklal ID #: 66280 Homework # 1 1. Ions are not the only hydrophilic molecules as many other substances are water soluble. This other group of hydrophilic molecules are polar molecules. This means that they have dipoles. A dipole is a partial electrical charge on a portion of a molecule that is due to the unequal sharing of electrons by the atoms of the molecule. Thus polar molecules have partial positive and partial negative charges. Because of the dipoles, when one mixes polar molecules together, the negative dipole of one molecule and the positive dipole of another will be weakly attracted to one another. This weak attraction is called a hydrogen bond and the formation of this bond allows for polar molecules to dissolve in one another. Since water is a polar molecule, other polar molecules will dissolve in water . Molecules that are not ions or are not polar are termed nonpolar. Nonpolar molecules do not dissolve
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