examples of acids bases and salts
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Acid salt is a somewhat obscure term for a class of salts formed by the partial neutralization of diprotic or polyprotic acids. Because the parent acid is only partially neutralized, one or more replaceable hydrogen ions remain. Typical acid salts have one or more alkali (alkaline) metal ions as well as one or more protons. Well known examples are sodium bicarbonate (NaHCO3), sodium hydrosulfide (NaHS), sodium bisulfate (NaHSO4), monosodium phosphate (NaH2PO4), and disodium phosphate (Na2HPO4). Often acid salts are used as buffers.
- H2SO4 + NaOH → NaHSO4 + H2O
Acid salts compounds can act either as an acid or a base: addition of a suitably strong acid will restore protons, and addition of a suitably strong base will remove protons. The pH of a solution of an acid salt will depend on the relevant equilibrium constants and the amounts of any additional base or acid. A comparison between the Kb and Ka will indicate this: if Kb > Ka, the solution will be basic, whereas if Kb < 'Ka, the solution will be acidic.
Use in food
Some acid salts are used in baking. They are found in baking powders and are typically divided into low-temperature (or single-acting) and high-temperature (or double-acting) acid salts. Common low-temperature acid salts react at room temperature to produce a leavening effect. They include cream of tartar, calcium phosphate, and citrates. High-temperature acid salts produce a leavening effect during baking and are usually aluminium salts such as calciumaluminium phosphate. Some acid salts may also be found in non-dairy coffee creamers.
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Answers:http://forum.purseblog.com/general-discussion/anyone-good-in-chemistry-330196.html http://www.justanswer.com/questions/30vvx-trying-to-understand-acids-bases-and-salts-i-understand http://chestofbooks.com/health/materia-medica-drugs/Treatise-Therapeutics-Pharmacology-Materia-Medica-Vol2/3-Effects-And-Uses-Of-Alkalies-As-Dynamic-Agents.html http://www.lef.org/protocols/prtcl-027.shtml ====================================================== Acids: ascorbic acid, , gamma-amino-butyric acid Alpha-Lipoic Acid--is a powerful antioxidant that regulates gene expression and preserves hearing during cisplatin therapy Bases: magnesium hydroxide (Milk of magnesia) , sodium bicarbonate, calcium carbonate (Rolaids)(Bronsted base) ==================================================== Salts: sodium chloride, potassium chloride, sodium fluoride Ascorbic acid (vitamin C) can be taken internally to neutralize "free radicals," otherwise known as non-essential ionic compounds and play a role in natural metabolism. & treatment for Scurvey Sodium bicarbonate reduces stomach acids and can make the urine less acidic. It is used as an antacid to treat heartburn, indigestion, and other stomach disorders. It is also used to treat various kidney disorders and to increase the effectiveness of sulfonamides. Sodium fluoride is used in dental products to fortify hydroxyapatite composing the enamelin found in teeth to prevent cavities.
Answers:ur just making it up... the salt lowers the temp needed to freeze the snow/ice therefore 0degrees celsius isnt the freezing point anymore anything above freezing point means it will not melt anymore btw why would there be HCL produced by adding salt to water?
Answers:1) A (although some salts are very sour!!!) 2) B 3) C 4) A 5) B 6) A 7) A,B 8) B
Answers:EXAMPLES OF ACIDS * Hydrochloric acid (HCl) in gastric juice * Sulphuric acid (H2SO4) * Nitric acid (HNO3) * Carbonic acid in softdrink (H2CO3) * Uric acid in urine * Ascorbic acid (Vitamin C) in fruit * Citric acid in oranges and lemons * Acetic acid in vinegar * Tannic acid (in tea and wine) * Tartaric acid (in grapes) EXAMPLES OF BASES AND ALKALIS * Sodium hydroxide (NaOH) or caustic soda * Calcium hydroxide ( Ca(OH)2 ) or limewater * Ammonium hydroxide (NH4OH) or ammonia water * Magnesium hydroxide ( Mg(OH)2 ) or milk of magnesia * Many bleaches, soaps, toothpastes and cleaning agents