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 molar mass of gas that, at STP, has a volume of {eq}100\;ml {/eq} and a mass of {eq}0.125\;g {/eq}? Molar Mass of a Gas: We are familiar with the pressure (P), volume (V), temperature (T), and number of moles (n) of gas i...
and 715 mm Hg.What is the molar mass of the gas? 相关知识点: 试题来源: 解析 理想气态方程(克拉伯龙方程)PV=NRT由N=m/M ,PV=(m/M)RT,左边移过来,右边移过去就是PM=pRT p为密度.M即为molar mass分子质量.这里p=2.39 g/lT需要由摄氏温度转变为开氏温度T=23.0℃=273.15+23℃=296.15KP需要转...
Molar mass of Carbon tetrachloride = CCl4 12+4×35.5=154g/mol Was this answer helpful? 2Similar Questions Q1 What is the molar mass of carbon tetrachloride? View Solution Q2 What is the mass percentage of carbon tetrachloride if 22g of benzene is dissolved in 122g of carbon tetrachloride?
2.what is its chemical formula?求答案及过程 答案 【解析】molar mass摩尔质量:0.88g/0.02mol=44g/molChemical formula求化学方程式,楼主你没给完整帮不到你。如果满意,请采纳,有任何疑问也欢迎提问,谢谢。相关推荐 1【题目】The mass of 0.02mol of a substanceis 0.88g1.what is the molar mass of this...
What is the molecular mass of carbon? Relative Atomic Mass: Relative atomic mass is the mass of an atom compared to the mass of 1\12 of the isotope carbon-12. This means that carbon-12 is defined as having a mass of exactly 12. Something with twice the mass of carbon-12 would have...
Rearranging this equation to solve for n, we get:n = PV/RTThe mass of oxygen in the cylinder can then be calculated as:m = n * M where M is the molar mass of oxygen.First, let's calculate the initial volume of the cylinder:V1 = 0.07 m^3 Next, let's calculate ...
What is the molar mass of KMnO4? Molar Mass: Molar mass is the number of grams of a substance that equals one mole or {eq}6.02 x 10^{23} {/eq} molecules, also known as Avogadro's number. Molar mass can be used to convert between moles and grams, denoted by {eq}g/mol {/eq}...
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An element's atomic mass is equal to the sum of the individual particle masses of an atom. Atoms have three basic particles which include protons, neutrons, and electrons. The standard unit for measuring atomic mass is the Dalton (u). ...