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Molar Mass, Molecular Weight and Elemental Composition Calculator Enter a chemical formula to calculate its molar mass and elemental composition: Molar mass of KAl(SO 4 ) 2 *12H 2 O (Potassium alum) is 474.3884 g/mol
A number in parentheses indicates the uncertainty in the last digit of the atomic weight. See below for the elements listed in Atomic Number Order or Name order. See also a copy of the periodic table with atomic weights to five significant figures. Table 1. List of Elements with Range of Atomic Weights. At No.
The value given in parenthesis is the molar mass of the isotope of largest known half-life. APPENDIX II. Some Useful Conversion Factors. Common Unit of Mass and Weight. pound = 453.59 grams. pound = 453.59 grams = 0.45359 kilogram. kilogram = 1000 grams = 2.205 pounds. gram = 10 decigrams = 100 centigrams = 1000 milligrams.
APPENDIX I. Elements, their Atomic Number and Molar Mass. The value given in parenthesis is the molar mass of the isotope of largest known half-life. APPENDIX II. Some Useful Conversion Factors. Common Unit of Mass and Weight. pound = 453.59 grams. pound = 453.59 grams = 0.45359 kilogram. kilogram = 1000 grams = 2.205 pounds.
1 Σεπ 2024 · Access detailed info on all elements: atomic mass, electron configurations, charges, and more. View rotating Bohr models for all 118 elements. Get a free HD image of the Periodic Table.
10 Δεκ 2019 · proton mass fine-structure constant 1/137.035 999 Rydberg constant 10 973 731.569 m−1 Boltzmann constant 1.380 65 x 10−23 J K−1 c h e molar gas constant 8.314 5 J mol−1 K−1 electron volt 1.602 177 x 10-19 J (exact) 0.510 998 950 MeV 13.605 693 eV R R c R R hc mec 2 mp 1.602 176 634 x 10−19 C 1.672 622 x 10−27 (exact)kg 3.289 841 ...
Molar masses based on 12 C = 12.000 amu Numbers in parentheses give the mass number of the most stable isotope
