(Hint: Like substances dissolve like substances, and polar solvents dissolve ionic compounds.) Gasoline is nonpolar. 3. A polar molecule has a positive charge on one end and a negative charge on the opposite end. Mix the contents with a stirring stick. vinegar is polar. In table two, indicate whether the solutes (vinegar and iodine solution) are soluble in the solvent (water). If the ink is attracted to oily fingers, then it is nonpolar. Oil based paints are nonpolar. Other examples of polar chemicals include alcohol and vinegar. However, polar and non polar chemicals do not mix. Answer Save. 3. One way to think about it is to observe (or postulate) that it will mix with oil. Then conclude whether the compound is polar, nonpolar, or ionic. Many nonpolar organic solvents, such as turpentine, are able to dissolve non-polar substances. In the methane molecule (CH 4) the four C−H bonds are arranged tetrahedrally around the carbon atom. Hydrocarbons are nonpolar. On the other hand, oil being non-polar does not dissolve in polar solvent like water. Then conclude whether the compound is polar, nonpolar, or ionic. (Hint: Like substances dissolve like substances, and polar solvents dissolve ionic compounds.) "Like" dissolve "like". Therefore, vinegar being polar will dissolve in polar solvent like water. Fat is nonpolar. Oil doesn't stay dissolved because the water molecules are polar and are strongly attracted to each other to the point that the oil molecules are excluded. Polar chemicals generally are soluble in water. Vinegar is basically a water solution of acetic acid. Nail polish is polar. If you believe it will, then it will be non-polar. Examples of non-polar solvents: carbon tetrachloride (CCl4), benzene (C6H6), ... Vinegar, for example, is a solution of acetic acid in water. Dry-cleaning solvents are polar. The bonds are arranged symmetrically so there is no overall dipole in the molecule. Rule of thumb: Anything that can dissolve in water is polar. It is polar, any time you have something with a lone pair, you can bet it will be polar unless you have some crazy dipole cancellations. 3 Answers. Mix the contents with a stirring stick. In table two, indicate whether the solutes (vinegar and iodine solution) are soluble in the solvent (water). and why? Non-polar solvents are liphophilic as they dissolve non-polar substances such as oils, fats, greases. Vitamin A is polar. Ethanol is polar. Please understand that polar or nonpolar is a continuous range, not an either or. not vinegar as a substance, but the molecule. This is where the saying “like oil and water” comes from. Vinegar or acetic acid is a polar molecule whereas oil is a chain of hydrocarbons which are insoluble in water. Is a vinegar molecule polar or nonpolar? 1st Liberal. The molecule is CH3 - COOH. Favorite Answer. Oil is nonpolar. Relevance. The -OH groups are polar. Where the carbons are bonded, and the center carbon has a double bond to on oxygen, and a single bond to another but the one with the single bond has an H. By the way, if it dissolves in water, that is a good bet that it is polar. Because oils also repel water, they are called hydrophobic, which means “water-fearing.” The carbon (black) and hydrogen (white) in this non-polar fatty acid molecule share electrons evenly and are neither negatively or positively charged. 8 years ago. Vinegar is polar. Iodine solution Vinegar No Ionic Nonpolar Vegetable oil Vinegar Yes Nonpolar Nonpolar Conclusion Write a conclusion statement that addresses the following questions: Due to Covid-19 pandemic, I used the internet to research the answers to this lab, so that is how I determined the polarity of these substances. The polar particles of salad oil are attracted to the nonpolar particles of the vinegar. Oil is nonpolar. Each bond has polarity (though not very strong). 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