解析 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. 结果一 题目 why is this the relative atomic mass of chlorine ...
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. ...
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
This chapter discusses the relative atomic masses, molecular masses, and the mole concept. Therelative atomic massof 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 ...
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.
A2 The table shows some information about three gases.name of gas formula relative molecular mass chlorine C71ammonia NH17HCI36.5(a) Complete the table by filling in the boxes.3(b) A student heated some solid ammonium chloride, NH.C/, in a test-tube. Ammoni a and one other gas were ...
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
Absolute humidity is the mass of water vapor divided by the mass of dry air in a volume of air at a given temperature. The hotter the air is, the more water it can contain. Absolute humidity is expressed as grams of moisture per cubic meter of air (g/m3). Relative humidity is the ...
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 molar volume 阿伏加德罗定律 Avogadro’s Law ...
6 (a) An element X has an atomic number of 24 and a relative atomic mass of52.06. The natural element consists of four isotopes. The mass spectrum of the element X produced the following peaks of three of the isotopes on the chart recorder.Percentage83.804.302.4050 51 52 53 54 55 56 ...