Top topic this week
Questions asked by users might not always be phrased in the clearest way.
The polarity index (PI) is a concept used to describe the overall polarity of a mixture. Acetone (CH3COCH3) is a polar solvent, while n-heptane (C7H16) is nonpolar. To calculate the PI of a mixture, you would need to consider the relative proportions of each component and their individual PI values. However, a '3.1 polarity index' isn't a standard term or concept. Could you please clarify what you mean by a '3.1 polarity index'? Are you referring to a specific scale or method for measuring polarity? Once you clarify your request, I can provide a more tailored response.