WebMar 11, 2024 · Multiply the subscript (number of atoms) times the atomic mass of that element and add the masses of all of the elements in the molecule to get the molecular mass. If we round off the atomic masses to four significant figures, we get: molecular mass C6H12O6 = 6 (12.01) + 12 (1.008) + 6 (16.00) =180.16 Answer 180.16 WebNov 5, 2024 · molecular mass = 120.234 + 61.94722 + 127.9952 molecular mass = 310.17642 (from the calculator) molecular mass = 310.18 The final answer uses the …
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WebThe degree of polymerization, or DP, is the number of monomeric units in a macromolecule or polymer or oligomer molecule.. For a homopolymer, there is only one type of monomeric unit and the number-average degree of polymerization is given by =, where M n is the number-average molecular weight and M 0 is the molecular weight of the monomer unit. … WebDec 6, 2024 · 15.999 ∗ 2 = 31.998 a m u {\displaystyle 15.999*2=31.998amu} . 4. Add up the mass of all the atoms to find the molecular weight. Molecular weight = ∑ ( (Atomic Mass of Element) n x (# of atoms of that element) n) [6] Round the answer as necessary, using significant digits. 16自愿犯法吗
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Web03:33. The molecular formula of a compound is X 4 O 9. If the compound contains 40 % X, by mass, what is the atomic …. 02:06. The incorrect statement for 14 g of C O is: (a) It … WebThe mass spectrum of pentan-3-one. This time the base peak (the tallest peak - and so the commonest fragment ion) is at m/z = 57. But this isn't produced by the same ion as the same m/z value peak in pentane. If you remember, the m/z = 57 peak in pentane was produced by [CH 3 CH 2 CH 2 CH 2] +. WebJan 28, 2016 · The molar mass of an atom or nuclide X is M(X) = A r (X) × 10-3 kg/mol = A r (X) kg/kmol = A r (X) g/mol, where A r (X) is the relative atomic mass of X (see Sec. 8.4). … 16脳7