Water properties, Properties of Water

Polarity - water is a polar molecule with one oxygen atom negatively charged and two hydrogen atoms positively charged. Universal solvent - Water - due to its polarity and ability to dissolve other polar molecules Hydrogen bonds - The weak intermolecular bonds that form between the hydrogen atom of one water molecule and the oxygen atom of another water molecule. Solvent - Does the dissolving Solute - Substance being dissolved Solution - Solvent +Solute=Solution Ex. Jello, Koolaid, and salt water density - the ratio of the mass of a substance to the volume of the substance (The density of water is 1.0 g/cm3) Polar Molecule - a molecule in which one side of the molecule is slightly negative and the opposite side is slightly positive Buffer - A solution that minimizes changes in pH when extraneous acids or bases are added to the solution. Proteins and Amino acids are intracellular fluid buffers. Carbonic acid/bicarbonate is an extracellular buffer. Hemoglobin / Oxyhemoglobin is an RBC buffer. Cohesion - Attraction between molecules of the same substance Adhesion - An attraction between molecules of different substances (water and another substance)