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An earlier definition, used especially for chemical elements, holds that an equivalent is the amount of a substance that will react with 1 g (0.035 oz) of hydrogen, 8 g (0.28 oz) of oxygen, or 35.5 g (1.25 oz) of chlorine—or that will displace any of the three. [8]
However, one gram of hydrogen reacts with 8 grams of oxygen to give water or with 35.5 grams of chlorine to give hydrogen chloride: hence 8 grams of oxygen and 35.5 grams of chlorine can be taken to be equivalent to one gram of hydrogen for the measurement of equivalent weights. This system can be extended further through different acids and bases.
The gram-atom is a former term for a mole of atoms, and gram-molecule for a mole of molecules. [ 7 ] Molecular weight (M.W.) (for molecular compounds) and formula weight (F.W.) (for non-molecular compounds), are older terms for what is now more correctly called the relative molar mass ( M r ). [ 8 ]
Phosphate (HPO 4 2−) 0.8: 1.5 [38] mmol/L: See hypophosphatemia or hyperphosphatemia: Inorganic phosphorus (serum) 1.0 [14] 1.5 [14] mmol/L 3.0 [14] 4.5 [14] mg/dL: Zinc (Zn) 60, [39] 72 [40] 110, [40] 130 [39] μg/dL: See zinc deficiency or zinc poisoning: 9.2, [41] 11 [5] 17, [5] 20 [41] μmol/L Magnesium: 1.5, [23] 1.7 [42] 2.0, [23] 2.3 ...
The diagnosis is typically based on finding low blood magnesium levels, also called hypomagnesemia. [6] Normal magnesium levels are between 0.6 and 1.1 mmol/L (1.46–2.68 mg/dL) with levels less than 0.6 mmol/L (1.46 mg/dL) defining hypomagnesemia. [1] Specific electrocardiogram (ECG) changes may be seen. [1]
According to Prest, a sample day, optimizing your magnesium intake, could include “cereal, milk, and a banana for breakfast, a sandwich on whole wheat bread with 1 cup of bean soup for lunch, 1 ...
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An adult body has 22–26 grams of magnesium, [15] [112] with 60% in the skeleton, 39% intracellular (20% in skeletal muscle), and 1% extracellular. [15] Serum levels are typically 0.7–1.0 mmol/L or 1.8–2.4 mEq/L. Serum magnesium levels may be normal even when