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C 2 H 3 Na O 2: Molar mass: 82.034 g·mol −1 : Appearance White deliquescent powder or crystals Odor: Vinegar (acetic acid) odor when heated to decomposition [1]: Density: 1.528 g/cm 3 (20 °C, anhydrous)
If kept cool (room temperature) and dry (an airtight container is recommended to keep out moist air), sodium bicarbonate can be kept without a significant amount of decomposition for at least two or three years. [84] [85] [86] [87]
As with any buffer system, the pH is balanced by the presence of both a weak acid (for example, H 2 CO 3) and its conjugate base (for example, HCO − 3) so that any excess acid or base introduced to the system is neutralized.
An acetate is a salt formed by the combination of acetic acid with a base (e.g. alkaline, earthy, metallic, nonmetallic or radical base). "Acetate" also describes the conjugate base or ion (specifically, the negatively charged ion called an anion) typically found in aqueous solution and written with the chemical formula C
Sodium arsenide, also known as trisodium arsenide, is the inorganic compound of sodium and arsenic with the formula Na 3 As. [1] It is a dark colored solid that degrades upon contact with water or air. It is prepared by the reaction of the elements at 200–400 °C. [2]
A buffer solution is a solution where the pH does not change significantly on dilution or if an acid or base is added at constant temperature. [1] Its pH changes very little when a small amount of strong acid or base is added to it.
Ka-226 A Ka-226 of the Police of Russia General information Type Light utility National origin Russia Manufacturer Kamov Status Active Primary user Russian Aerospace Forces Syrian Arab Air Force Number built 69 History Manufactured 1996 - Present Introduction date 2002 First flight 4 September 1997 Developed from Kamov Ka-126 The Kamov Ka-226 (NATO reporting name: Hoodlum) is a small, twin ...
Historically, the mole was defined as the amount of substance in 12 grams of the carbon-12 isotope.As a consequence, the mass of one mole of a chemical compound, in grams, is numerically equal (for all practical purposes) to the mass of one molecule or formula unit of the compound, in daltons, and the molar mass of an isotope in grams per mole is approximately equal to the mass number ...