BIOL-1100 Lecture Notes - Lecture 3: Molecular Mass, Weak Base, Water Cooling
9 Mar 2017
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Document Summary
Predict equilibrium concentrations of acid/base and calculate ph from pka/pkb. High specific heat (takes a lot of energy to change temperature) Cohesive- sticks to itself, forms hydrogen bonds with itself. Water potential- ability of water to move through membranes. Capillary action- movement of water through narrow spaces (with polar surfaces) that distorts the shape of the liquid; fights gravity. Allows life to create partitions in an aqueous environment. Hydration shells around na+ and cl- ions allows for water to dissolve nacl. Steam has lots of energy and flows from high to low (from steam to hand) So much energy is transferred because it"s going from gas to liquid on your. Mole (mol)- number of particles in a body with mass in grams equal to the particles atomic or molecular mass. Molecular mass- sum of the atomic mass of all atoms in one molecule. Molarity- moles solute/volume solution: units- mol/l. Ph is a scaled measurement of the hydronium (h3o+) concentration.
