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
What is darmstadtium's atomic mass? What is the mass number of oxygen-18? What is the mass number of chlorine? What is sodium's mass number? What is the mass number of radium? What is the mass number of NaCl? What is the mass number of neon?
What is the atomic number of carbon-12? What is the atomic number of oxygen-17? What is the atomic number of antimony? What is the atomic number for xenon? What is the atomic number of uranium-238? What is the relative atomic mass of helium?
- The atomic mass of chlorine is 35.5 g/mol, which reflects the average of its isotopes weighted by their relative abundances. - Thus, the significance of the word "average" in atomic mass is that it represents a value that accounts for the presence and relative abundance of different isot...
When we're talking about atoms, a mole is the relative atomic mass in grams. So a mole of carbon is 12g, because carbon's relative atomic mass is 12, and it contains 620 billion trillion atoms. A mole of aluminum is 27g, because aluminum's relative atomic mass is 27. A mole of ...
The scientific study of matter's characteristics and behaviour is known as chemistry. Chemistry vocabulary and Chemistry glossary are different from the normal vocabulary. It is a branch of natural science that examines the building blocks of matter, including the atoms, molecules, and ions that mak...
The compound carbon monoxide(CO)is composed of carbon and oxygen in the ratio of one atom of carbon to one atom of oxygen.Hydrogen chloride(HCl)contains a ratio of one atom of hydrogen to one atom of chlorine.Compounds may contain more than one atom of the same element. Methane(“natural...
Answer to: Rhenium (75Re) has two naturally occurring isotopes with atomic weights 184.9530 and 186.9560. What is the percent abundance of the...
Class 9 CHEMISTRY What is the molar mass of a gas or vapou... What is the molar mass of a gas or vapours under N.T.P. conditions? Video Solution | ShareSave Answer Step by step video & image solution for What is the molar mass of a gas or vapours under N.T.P. conditions? by...
Though table salt may be what comes to mind when you think 'sodium,' it is actually a compound, meaning it has more than one component. Table salt is sodium chloride, and is made up partly of sodium atoms and partly of chlorine atoms. ...