Today, a mole isAvogadro's numberof particles, which is exactly 6.02214076×1023. For all practical purposes, the mass of one mole of a compound in grams is approximately equal to the mass of one molecule of the compound in daltons. Originally, a mole was the quantity of anything that has...
What is a mole in chemistry? How would one prepare 200.0 mL of 0.25 M NaCl2 from 2.0 M solution? How much water must be evaporated from 500 ml of 1M NaOH to make it 5M? Explore our homework questions and answers library Search
What is a mole? A fixed Avogadro constant or a fixed carbon-12 molar mass: which one to choose?(Old Concepts and New) Y Jeannin,IM Mills - 《Internationalunionofpureandappliedchemistry》 被引量: 8发表: 2010年 Calling on a million minds for community annotation in WikiProteins We call ...
The molar mass of a substance is the mass of one mole of that substance. What is the unit of molar mass? A. g/mol B. mol/g C. L/mol D. mol/L 相关知识点: 试题来源: 解析 A。本题考查摩尔质量的单位。摩尔质量是指单位物质的量的物质所具有的质量,单位是克每摩尔(g/mol)。选项 B ...
Mole Ratio Definition A mole ratio is the ratio between the amounts inmolesof any twocompoundsinvolved in achemical reaction. Mole ratios are usedas conversion factorsbetween products andreactants in many chemistry problems. The mole ratio may be determined by examining the coefficients in fron...
Mole (Chemistry) (TerminologyTerms and phrases (EvaluationJeannin, YvesMills, Ian MInternationalunionofpureandappliedchemistryJeannin Y 2010 A fixed Avogadro constant or a fixed carbon-12 molar mass: which one to choose? Chem. Int. 32 (January-February) 8-10...
37. What happens when one mole of ethane is mixed in the dark at room temperature with six moles of chlor ine gas? A. There is no reaction. B. Only C2Cs are formed. C. C2Cls and HCI are formed. D. CH3CH2CI and HCI are formed. 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
quantities of substances. One millimolar (1 mM) is equal to one-thousandth of a mole per liter (1/1000 mol/L).If a solution has a 5 millimolar (5 mM) concentration for a particular substance, it means that there are 5 millimoles of that substance dissolved in one liter of the ...
number (6.02214076 × 1023) is the number of molecules that constitutes the atomic weight of a molecule in grams (g). For example, water is two hydrogen atoms with a weight of 1 g each and one oxygen atom with a weight of 16 g, meaning that one mole of water molecules weighs 18 g...
when lives are waven when lost will you fi when lotus is ego when loves not enough when my grandmother f when no more letters when one door shuts a when parents call when peoples in love when preparing to est when quiet time when receive new equi when reconstructing i when scorned when ...