CHEM 001A Lecture Notes - Lecture 10: Molar Attenuation Coefficient, Barium Chloride, Molar Mass
Document Summary
Earth"s surface is about 75 percent covered by water. Properties of water are responsible for life on earth and many geographical. All natural waters have ionic and molecular compounds dissolved in them. Solutions : homogeneous mixtures of two or more substances. A solution may contain one or more solutes. Aqueous solutions water is the solvent. Is the amount of a solute in a particular amount of solvent or amount of solute amount of solvent. Quantitative concentration units based on: amount of solute amount of solution or . Example : concentration of molecules in blood are given in units of mg milligrams of substance (solute) per deciliter: dl. Parts per million ( ppm ): 1 mg solute. Parts per billion ( ppb ): 1 g solute. If we know the volume (v) and molarity ( m ) of a solution we can calculate moles volume (v ) of solution in liters moles (n) of solute. Moles = mass (g) mass (g)
