A measure of the chemical combining power of electrolytes in solution. One has the chemical combining power of 1 mg of hydrogen and is usually expressed in terms of the number per liter.
A measurement of the concentration of electrolytes in solution that is determined by multiplying the milligrams per liter by the valence of the chemical and dividing by the molecular weight of the substance: mEq/L = (mg/L) . valence/molecular weight. A measurement of the osmotic activity of a solution that is determined by dividing the milli- equivalent value by its valence.
One thousandth of a chemical equivalent. The concentration of electrolytes in a certain volume of solution is usually expressed as milliequivalent per liter (mEq/L). It is calculated by multiplying the milligrams per liter by the valence of the chemical and dividing by the molecular weight of the substance.