potassium molar mass
Examples: Fe, Au, Co, Br, C, O, N, F. You can use parenthesis or brackets []. Some Class D dry powder extinguishers designed for metal fires are also effective. The body has about as much potassium as sulfur and chlorine, and only calcium and phosphorus are more abundant (with the exception of the ubiquitous CHON elements). This is not the same as molecular mass, which is the mass of a single molecule of well-defined isotopes. Klaproth, M. (1797) "Nouvelles données relatives à l'histoire naturelle de l'alcali végétal" (New data regarding the natural history of the vegetable alkali). This reaction is exothermic and releases sufficient heat to ignite the resulting hydrogen in the presence of oxygen. [118], An alloy of sodium and potassium, NaK is a liquid used as a heat-transfer medium and a desiccant for producing dry and air-free solvents. Potassium Chloride KCl Molar Mass, Molecular Weight. It is also used to saponify fats and oils, in industrial cleaners, and in hydrolysis reactions, for example of esters. [103], Potassium, in the form of potassium chloride is used as a medication to treat and prevent low blood potassium. ), The reactive feed-forward system refers to an incompletely understood system that induces renal potassium secretion in response to potassium ingestion prior to any rise in the plasma potassium. Finding Molar Mass. Using the chemical formula of the compound and the periodic table of elements, we can add up the atomic weights and calculate molecular weight of the substance. Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose. Kalium (Potassium) – Elementymology & Elements Multidict, "Drying of Organic Solvents: Quantitative Evaluation of the Efficiency of Several Desiccants", "Theory and Assumptions in Potassium–Argon Dating", "Radiation and Radioactive Decay. What is the molar mass of potassium hydrogen phthalate? We use the most common isotopes. [124], Ingestion of large amounts of potassium compounds can lead to hyperkalemia, strongly influencing the cardiovascular system. daytime for humans, nighttime for rodents) independent of the presence, amount, or absence of potassium ingestion. Potassium is the eighth or ninth most common element by mass (0.2%) in the human body, so that a 60 kg adult contains a total of about 120 g of potassium. of a chemical compound, More information on The other is passive and allows potassium to leak out of the cell. Median response time is 34 minutes and may be longer for new subjects. Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose. Solution for Potassium's atomic number is 19 and its atomic weight is 39.1, so its molar mass is: Potassium chlorate (KClO3) is added to matches and explosives. Potassium cyanide (KCN) is used industrially to dissolve copper and precious metals, in particular silver and gold, by forming complexes. Calculate the molecular weight These peroxides may react violently with organic compounds such as oils. The molar mass of KCNS (Potassium thiocyanate) is: 97.1763 grams/mol. [123], Because potassium reacts with water vapor in the air, it is usually stored under anhydrous mineral oil or kerosene. This site explains how to find molar mass. • HNO3 + KOH = H2O + KNO3 (1997). This is probably initiated by gut cell potassium receptors that detect ingested potassium and trigger, The predictive or circadian system increases renal secretion of potassium during mealtime hours (e.g. If the formula used in calculating molar mass is the molecular formula, the formula weight computed is the molecular weight. ›› Potassium molecular weight. Potassium bromate (KBrO3) is a strong oxidizer (E924), used to improve dough strength and rise height. Therefore, the Molar Mass of Potassium is 39.0983 g/mol. [97] Furthermore, potassium can play a key role in nutrient cycling by controlling litter composition. [119] The ternary alloy of 12% Na, 47% K and 41% Cs has the lowest melting point of −78 °C of any metallic compound. After prolonged storage in air dangerous shock-sensitive peroxides can form on the metal and under the lid of the container, and can detonate upon opening. The molar mass of potassium chloride is … It will calculate the total mass along with the elemental composition and mass of each element in the compound. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. The reason is that the molar mass of the substance affects the conversion. A. McCleverty and T. J. Meyer (eds. Mass of K in a quantity of K2Cr2O7..... 12.5g K2Cr2O7 x (1 mol K2Cr2O7 / 294.4g K2Cr2O7) x (2 mol K / 1 mol K2Cr2O7) x (39.1g K / 1 mol K) = 3.32g K ..... to three significant digits. Unlike lithium and sodium, however, potassium should not be stored under oil for longer than six months, unless in an inert (oxygen free) atmosphere, or under vacuum. [16], Metallic potassium is used in several types of magnetometers.[120]. The molar mass of NaKC4H4O6 (Sodium potassium tartrate) is: 210.1573 grams/mol. Browse the list of I. The percentage by weight of any atom or group of atoms in a compound can be computed by dividing the total weight of the atom (or group of atoms) in the formula by the formula weight and multiplying by 100. Its applications include gold mining, electroplating, and electroforming of these metals; it is also used in organic synthesis to make nitriles. [114], There are thousands of uses of various potassium compounds. These agents deprive the fire of oxygen and cool the potassium metal. [102] In 2005, about 93% of world potassium production was consumed by the fertilizer industry. Exact Mass: 38.963706 g/mol: Computed by PubChem 2.1 (PubChem release 2019.06.18) Monoisotopic Mass: 38.963706 g/mol: Computed by PubChem 2.1 (PubChem release 2019.06.18) Topological Polar Surface Area: 0 Ų: Computed by Cactvs 3.4.6.11 (PubChem release 2019.06.18) Heavy Atom Count: 1: Computed by PubChem: Formal Charge: 1: Computed by PubChem: Complexity: 0 Formula weights are especially useful in determining the relative weights of reagents and products in a chemical reaction. The atomic weights used on this site come from NIST, the National Institute of Standards and Technology. [105] It is given by slow injection into a vein or by mouth. [104] Low blood potassium may occur due to vomiting, diarrhea, or certain medications. *Response times vary by subject and question complexity. Meta-analysis of randomized controlled clinical trials", "Potassium Intake, Stroke, and Cardiovascular Disease: A Meta-Analysis of Prospective Studies", "Effects of potassium chloride and potassium bicarbonate on endothelial function, cardiovascular risk factors, and bone turnover in mild hypertensives", "Mineral Commodity Summaries 2008:Potash", 10.1002/0471238961.1615200103080921.a01.pub2, "Potassium chloride medical facts from Drugs.com", Ullmann's Encyclopedia of Industrial Chemistry, "DOE Handbook-Alkali Metals Sodium, Potassium, NaK, and Lithium", "Potassium Chloride and Potassium Permanganate", https://en.wikipedia.org/w/index.php?title=Potassium&oldid=987925338, Biology and pharmacology of chemical elements, CS1 maint: DOI inactive as of November 2020, CS1 maint: BOT: original-url status unknown, Wikipedia indefinitely semi-protected pages, Wikipedia indefinitely move-protected pages, Short description is different from Wikidata, Articles with unsourced statements from August 2017, Articles with unsourced statements from September 2017, Articles with Encyclopædia Britannica links, Creative Commons Attribution-ShareAlike License. Both peroxides and superoxides may react explosively with metallic potassium. Many common fire extinguishing agents, including water, either are ineffective or make a potassium fire worse. These relative weights computed from the chemical equation are sometimes called equation weights. The two bosonic isotopes possess convenient Feshbach resonances to enable studies requiring tunable interactions, while 40K is one of only two stable fermions amongst the alkali metals. To calculate Molar Mass , Multiply the number of atoms of the element by Atomic mass. [115][116], Another example is potassium cobaltinitrite, K3[Co(NO2)6], which is used as artist's pigment under the name of Aureolin or Cobalt Yellow.
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