百度试题 结果1 题目12 The relative atomic mass of chlorine is 35.5.B What is the mass of 2 moles of chlorine gas? A 17.75g B 35.5g C 71g D 142g 相关知识点: 试题来源: 解析 B 反馈 收藏
混合物 mixture 相对原子质量 relative atomic mass(abbr. Ar) 相对分子质量 relative molecular mass (abbr. Mr) 化学式量 relative formula mass 物质的量 amount of substance 阿伏加德罗常数 Avogadro constant (abbr. NA) 摩尔mole 摩尔质量 molar mass 实验式/最简式/经验式 empirical formula 气体摩尔体积 mol...
The relative atomic mass of an element is defined as the weight in grams of the number of atoms of the element contained in 12.00 g of carbon-12. To calculate the relative atomic mass of chlorine, the average mass of one atom of chlorine is found by considering 100 atoms of chlorine. ...
Chlorine always exists as two isotopes .These ar CI-35 and CI-37 isotopes and are present in the ratio of 3:1 The atomic mass of the element is therefore fractional and is regarded as the relative atomic mass
We don't round it to a whole number because we want the number of the relative atomic mass of cholorine to be as precise as possible. We really care about the significant figures, so it's better if we get more digits.
atomic radii number of shells ionic radii of electrons in/pm of electrons in -1/pm atom charged ion fluorine271133chlorine399181bromine115196(1000 000 000 000 pm=1 m)(i) Complete the table to show the number of shells of electrons in the ions of Group I and Group Vll elements.2](ii)...
If a sample of copper contains69.1%of63 Cu of isotopic mass62.930u and30.9%of65Cuof isotopic mass64.298u.Calculate the relative atomic mass of copper. View Solution Explain Atomic mass View Solution Explain relative humidity . View Solution ...
Thus for example, the RAM of chlorine is 35.45, consisting of the isotopes 35Cl with AM 34.969 and 37Cl with AM 36.966.The value of the amu is 1.661 x 10-27 kg, so the actual mass of a 35Cl atom, for example, is 5.808 x 10-26 kg. Logged ...
Looking for relative age? Find out information about relative age. The geologic age of a fossil organism, rock, or geologic feature or event defined relative to other organisms, rocks, or features or events rather than in... Explanation of relative age
Average atomic mass = ∑ (mass of isotope x percent abundance of isotope) Let us consider an example to understand this. The most stable, naturally occurring isotopes ofchlorineare Cl-35 (mass = 34.969 and percent abundance = 75.53%) and Cl-37 (mass = 36.966 and percent abundance = 24.47...