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The main elements that comprise the human body (including water) can be summarized as CHNOPS. Element Symbol percent mass percent atoms Oxygen O 65.0 24.0 Carbon C 18.5 12.0 Hydrogen H 9.5 62.0 Nitrogen N 2.6 1.1 Calcium Ca 1.3 0.22 Phosphorus P 0.6 0.22 Sulfur S 0.3 0.038 Potassium K 0.2 0.03 Sodium Na 0.2 0.037 Chlorine Cl 0.2 0.024 Magnesium Mg
Hydrochloric acid is a strong inorganic acid that is used in many industrial processes such as refining metal. The application often determines the required product quality. [25] Hydrogen chloride, not hydrochloric acid, is used more widely in industrial organic chemistry, e.g. for vinyl chloride and dichloroethane. [8]
Typical values for the viscosity of normal human plasma at 37 °C is 1.4 mN·s/m 2. [3] The viscosity of normal plasma varies with temperature in the same way as does that of its solvent water [4];a 3°C change in temperature in the physiological range (36.5°C to 39.5°C)reduces plasma viscosity by about 10%. [5]
1.0-3.4 × 10 −7: Tin: 0-4 × 10 −7: 0-1 × 10 −7: alpha-Tocopherol (Vitamin E) 5-20 × 10 −6: Transcortin: male 1.5-2 × 10 −5: female 1.6-2.5 × 10 −5: Transferrin: newborn 1.3-2.75 × 10 −3: adult 2.2-4 × 10 −3: age >60 yrs 1.8-3.8 × 10 −3: Triglycerides: 8.5-23.5 × 10 −4: 2.5-30 × 10 −4: Triiodothyronine: free 2.3 ...
Chloride is an anion in the human body needed for metabolism (the process of turning food into energy). [1] It also helps keep the body's acid-base balance. The amount of serum chloride is carefully controlled by the kidneys. [2] Chloride ions have important physiological roles.
Total body water in healthy adults is about 50–60% (range 45 to 75%) of total body weight; [1] women and the obese typically have a lower percentage than lean men. [2] Extracellular fluid makes up about one-third of body fluid, the remaining two-thirds is intracellular fluid within cells. [3]
Where data points are unavailable for 25 °C or 1 atmosphere, values are given at a nearby temperature/pressure. The temperatures corresponding to each data point are stated explicitly. By contrast, pressure is omitted since gaseous viscosity depends only weakly on it.
When expressed in percent, it is known as the mole percent or molar percentage (unit symbol %, sometimes "mol%", equivalent to cmol/mol for 10 −2). The mole fraction is called amount fraction by the International Union of Pure and Applied Chemistry (IUPAC) [ 1 ] and amount-of-substance fraction by the U.S. National Institute of Standards and ...