1000 cm3of the solution contains 2 moles of NaOH Thus, 1 cm3of the solution contains21000moles of NaOH and 200 cm3of the solution contains21000× 200 moles of NaOH. That is, the number of moles of sodium hydroxide is 0.4. In order to find the mass of sodium hydroxide required to make...
22 Table 1 shows the relative atomic mass of elements W and X.Jadual 1 menunjukkan jisim atom relative bagi unsur W dan unsur X.Element Relative atomic mass Unsur Jisim atom relatif Table 1W 48 Jadual 1× 16Which of the following is true about the atoms of elements W and X?Antara...
Write the atomic mass, atomic weight and relative atomic mass of calcium View Solution What do you understand from the statement "relative atomic mass of sulphur is32∘? View Solution If a sample of copper contains69.1%of63 Cu of isotopic mass62.930u and30.9%of65Cuof isotopic mass64.298u....
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
Step 2: Calculate the number of moles of carbon and hydrogenTo find the number of moles of each element, we divide the percentage of each element by its atomic mass. - For Carbon (C):Moles of Carbon=82.812=6.9 moles - For Hydrogen (H):Moles of Hydrogen=17.21=17.2 moles Step 3: Find...
Using the simplest possible model, what is the relative size of the following two polymers of polystyrene as measured by the root mean square end-to-end distance? Number average molecular weight of the polymers: 1.10 kg/mol 2...
Relative differential cross-sections are derived as a function of the invariant mass, the transverse momentum and the ra- pidity of the top quark pair system. Events are selected in the lepton (electron or muon) + jets channel. The background- subtracted differential distributions are corrected ...