CHEM 1127Q Lecture Notes - Lecture 12: Molar Concentration, Covalent Bond

• School: UConn
• Department: Chemistry
• Course: CHEM 1127Q
• Professor: Clyde Cady, Stephen Barshay

Document Summary

Chem 1127q - lecture 8 makeup - molarity and solutions. A solution is when you dissolve something in something else. (prof. barshay) Solvent : the thing that you dissolve the solute in (e. g. water) Remember: we call water the universal solvent because its polarity (it has polar covalent bonds), among other properties, breaks up the bonds in many compounds fairly easily. Solute : the thing that is dissolved in the solvent (e. g. solvent + solute = solution. Concentration of solute in solution: mol of solute. Molarity ( m ) = l of solution mass of component mass of solution. Ppb = mass of component mass of solution mass of component mass of solution x 100% (remember: units must be the same) x 10 6 ppm (parts per million) x 10 9 ppb (parts per billion) When a solution is diluted, the moles of solute do not change!