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 ...
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 ...
What is the formula of the compound formed from the cation NH4+ and the anion ClO3-? What is the formula of the compound formed from the cation NH4+ and the anion OH-? What is the formula of the compound formed from the cation Pb4+...
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...
O2 Question: SO2 Mass of Sulfur Dioxide Gas: The measurement of the number of moles of a substance with the molecular mass of that substance is known as the mass of the substance. The required expression from this definition is: n∝M ...
The Mole is a unit that represents a certain number. It is defined as the number of carbon atoms contained in a pure sample carbon-12 of mass {eq}12\;\rm g {/eq}. The constant number of called the Avogadro's constant. The order of the magnitude of Avogadro's constant is {eq}23...
[转]What If..[What if]第4期——1摩尔的鼹鼠原作: http://what-if.xkcd.com/4/翻译:Ent如果收集一摩尔的鼹鼠,全部放在一个地方,会发生什么呢(#英文里摩尔和鼹鼠都是mole这个
What is the mass of(a)6x10^23 atoms of O(b)6x10^23 atoms of O2(c)one mole of carbon dioxide,CO2(d)two mole of silver,Ag(e)0.2 moles of silver,Ag 相关知识点: 试题来源: 解析 a)6x10^23即是1mol,即1mol原子的氧元素.质量为16*1=16gb)1mol氧原子的氧气质量为 16*1=16g...
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O2 Oakley Octave Odys Oehlbach Oem systems Olive Olivetti Olson Olympus Omnimount On q legrand One all One for all Oneplus Onkyo Onn Opera Opera consonance Oppo Opticon Optimum Optoma Optoma technology Orange Orb Orbital Orbitsound Oregon scientific Origin live Ortofon Otl Otone Outdoor tech Outdoor...