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Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate [9]), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO 3. It is a salt composed of a sodium cation ( Na + ) and a bicarbonate anion ( HCO 3 − ).
In domestic cooking, bulk solids, notably flour and sugar, are measured by volume, often cups, though they are sold by weight at retail. Weight measures are used for meat . Butter may be measured by either weight ( 1 ⁄ 4 lb) or volume (3 tbsp) or a combination of weight and volume ( 1 ⁄ 4 lb plus 3 tbsp); it is sold by weight but in ...
Sodium carbonate decahydrate (Na 2 CO 3 ·10H 2 O), also known as washing soda, is the most common hydrate of sodium carbonate containing 10 molecules of water of crystallization. Soda ash is dissolved in water and crystallized to get washing soda. Na 2 CO 3 + 10 H 2 O → Na 2 CO 3 ·10H 2 O. It is one of the few metal carbonates that is ...
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Tooth powder was historically used among the Romans to clean and whiten teeth, to fix them when loose, to strengthen the gums, and to assuage toothache. [ 2 ] [ 3 ] [ 4 ] They made tooth powder from a variety of substances, such as the bones, hoofs, and horns of certain animals; [ 2 ] crabs; oyster [ 5 ] and murex shells; and egg-shells.
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Mass fraction can also be expressed, with a denominator of 100, as percentage by mass (in commercial contexts often called percentage by weight, abbreviated wt.% or % w/w; see mass versus weight). It is one way of expressing the composition of a mixture in a dimensionless size ; mole fraction (percentage by moles , mol%) and volume fraction ...
Baking soda is a safe, low abrasive, and effective stain removal and tooth whitening toothpaste. [43] Tooth whitening toothpaste that have excessive abrasivity are harmful to dental tissue, therefore baking soda is a desirable alternative. [43] To date, clinical studies on baking soda report that there have been no reported adverse effects. [43]