A 1.42g sample of a pure compound with formula M2SO4,was dissolved(溶解)in water,and treated with an excess of BaCl2 solution,resulting in the precipitation(沉淀)of barium sulfate (BaSO4).It was collected,dried,and found in weight 2.33g.Determine the atomic mass of M,and identify M 相关...
Barium sulfate, with the chemical formula BaSO4, is a white powder. It is an inorganic compound and an important industrial chemical. Barium sulfate is non-toxic, tasteless, and insoluble in water. It has a wide range of applications in various fields such as medicine, construction, metallurgy...
BaSO4的摩尔质量和分子量为{1,数字}。 由硫酸钡- BaSO4组成 元素标志原子质量原子#质量百分比 鋇Ba137.327 g/mol158.8402% 硫S32.065 g/mol113.7388% 氧O63.9976 g/mol427.4209% 硫酸钡 元素 质量百分比鋇137.327g鋇137.327g氧63.9976g氧63.9976g硫32.065g硫32.065gBaSO4 原子#氧4氧4鋇1鋇1...
15. Relative molecular mass: the sum of the relative atomic masses of the atoms in a chemical formula 16: an atom or group of atoms with charge Note: in ion, nuclear charge number = the number of protons outside the nuclear and electron number 18, four basic types of chemical reactions...
(OH) 2 Carbon dioxide is soluble in water Third, the law of conservation of mass: 19. Magnesium burns in the air: 2Mg + O2 igniting 2MgO 20. Reaction of iron and copper sulfate solution: Fe + CuSO4 = = FeSO4 + Cu 21. Hydrogen reduction copper oxide: H2 + CuO heating Cu + H2O...
(the studyofwatercompositionexperiment):2H2Oelectricpower 2H2arrow+O2arrow 17.Limeissolubleinwater:CaO+H2O==Ca(OH)2 Carbondioxideissolubleinwater Third,thelawofconservationofmass: 19.Magnesiumburnsintheair:2Mg+O2igniting2MgO 20.Reactionofironandcoppersulfatesolution:Fe+CuSO4 ==FeSO4+Cu 21.Hydrogen...
carbon dioxide soluble in water: H2O + CO2=H2CO3 Three, the law of conservation of mass: 19. magnesium burns in air: 2Mg + O2 ignites 2MgO 20. iron and copper sulfate solutions: Fe + CuSO4 = FeSO4 + Cu 21. hydrogen reduction of copper oxide: H2 + CuO Cu + H2O 22. magnesium ...
BaSO4{-} 元素 质量百分比鋇137.327g鋇137.327g氧63.9976g氧63.9976g硫32.065g硫32.065gElectron0.0005gElectron0.0005gBaSO4{-} 原子#氧4氧4鋇1鋇1硫1硫1Electron1Electron1 指令 这个程序决定一种物质的分子量。输入物质的分子式,它将计算出元素的组合物和质量的化合物中的每个元素的总质量。
BaSO4ZnS的摩尔质量和分子量为{1,数字}。 由BaSO4ZnS组成 元素标志原子质量原子#质量百分比 鋇 Ba 137.327 g/mol 1 41.5056% 硫 S 64.13 g/mol 2 19.3826% 氧 O 63.9976 g/mol 4 19.3426% 鋅 Zn 65.409 g/mol 1 19.7692% BaSO4ZnS 元素 质量百分比鋇137.327g鋇137.327g鋅65.409g鋅65.409g...
BaSO4ZnS的摩尔质量和分子量为{1,数字}。 由BaSO4ZnS组成 元素标志原子质量原子#质量百分比 鋇 Ba 137.327 g/mol 1 41.5056% 硫 S 64.13 g/mol 2 19.3826% 氧 O 63.9976 g/mol 4 19.3426% 鋅 Zn 65.409 g/mol 1 19.7692% BaSO4ZnS 元素 质量百分比鋇137.327g鋇137.327g鋅65.409g鋅65.409g...