Sponsored: electrolytes
1. Freezing Point
, temperature at which a liquid congeals into the solid state at a given pressure (see PRESSURE; TEMPERATURE). The of a pure (unmixed) liquid is essentially the same as the melting point of the same substance in its solid form and may be regarded as the temperature at which the solid and liquid states of the substance are in equilibrium. If heat is
2. Chemistry: Acid-Base Titration
The objective of this experiment were: a) to review the concept of simple acid-base reactions; b) to review the stoichiometric calculations involved in chemical reactions; c) to review the basic lab procedure of a titration and introduce the student to the concept of a primary standard and the process of standardization; d) to review the calculatio
3. Electrolytes
are liquids that conduct electricity. Most need to be dissolved into water or another solvent. Batterys have an electrolyte in them, either as a liquid or as a paste. Liquid are used in electrolysis, electroplating, and other chemical processes. When dissolve they release positive and negative ions. The released ions carry electric charges between
4. Cystic Fibrosis
(CF) used to be considered a childhood disease, because people born with it rarely lived to reach adolescence. Now, with marked improvement in treatmentsfrom physiotherapy and antibiotics that keep the lungs clear of mucus and microbes to enzyme supplements that aid digestionmany people with CF live into their thirties and beyond (Hopkin, 1998).
5. The Dangers Of Diet Aids
About a month ago, I stepped onto my bathroom scales. When I looked down at the numbers, my fears were confirmed: I had gained 5 pounds. Overcome with a desire to shed this unwanted extra weight, I decided to join millions of Americans just like me, and buy some sort of diet aid to help me along. I had no idea what to look for, what to avoid, and p