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The relative molecular mass of hydrogen gas is 2.


the relative molecular mass or molecular weight of a compound is the mass of a molecule of the compound relative to the mass of a carbon atom taken as exactly 12.


Relative molecular mass is obtained.It is about 17


It has a relative molecular mass of 100


The molecular mass of a compound is the sum of the chemical elements weights contained in the molecule.


As they are isobars, they have the same relative molecular mass.


It is the mass of a given molecule in relation to 1/12th the mass of a C-12 atom.


Moles = Mass/ Relative Molecular Mass Aluminum forms Al2 compounds, so the relative molecular mass is 2 * 13 = 26. 856/26 = 32.9 (3sf)


The RMM of sulfate ion is 96u. In sulfuric acid, two protons are attached to a sulfate ion. Hence its relative molecular mass is 96+2=98.


The atomic mass of calcium is 40. The molecular mass of the nitrate ion is 62. Therefor the RMM of calcium nitrate is 40+62x2=164.


Relative molecular mass is obtained by summing up the atomic masses of atoms in the formula. The gram molecular mass denotes the mass of a mole of the substance in grams. Both of them are same in number.


The relative mass of sodium carbonate is 106. The term decahydrate refers to 10 water molecules attached which has relative mass of 180. Therefore the relative mass of compound is 286.


The rmm of phosphoric acid is 97.976898.


Mr is the symbol for the relative molecular mass.


The atomic mass of Mg is 24. The atomic mass of fluorine is 19. Therefore the relative mass of the substance is 62.


Formula of water = H2O Relative atomic mass of hydrogen = 1 Relative atomic mass of oxygen = 16 Relative molecular mass of H2O = 1 + 1 + 16 = 18 Moles = mass of substance/relative molecular mass Moles = 100/18 Moles of water in 100g = 5 and 4/9 moles or approximately 5.56 moles


Relatve Molecular Mass is the average mass of one molecule of a substance when compared with 1/12 of the mass of one atom of carbon -12 Find the Atomic mass of the atoms together and add them together to get heir relative molecular mass. Example: NH3 Find the atomic mass of 1 Nitrogen and also 3 Hydrogen 14 + 3(1) = 17 Therefore it is 17g


They are values that are calculated in relation (hence are relative) to the mass of C-12 atoms, and therefore the mass (g) units cancel out in the equation, leaving no units.


The relative molecular mass of sulfate ion is 96. Sulfuric acid molecule has two protons attached to it. Therefore the GMM of sulfuric acid is 98g.



The relative atomic mass of N is 14.0. This is obtained from the periodic table. Nitrogen exist as diatomic molecules, and one molecule of N2 would have molecular mass of 28.0.


The relative atomic mass of hydrogen is 1 and for oxygen it's 16. This gives water (which has the formula H2O) a molecular mass of 18.


(Chemistry) the sum of all the relative atomic masses of the atoms in a molecule; the ratio of the average mass per molecule of a specified isotopic composition of a substance to one-twelfth the mass of an atom of carbon-12. Symbol Mr Abbreviation r.m.m Former name molecular weight


The chemical formula of potassium dichromate is K2Cr2O7; and the molecular mass is 294,185.


The relative atomic mass of sulfur is 32. And for oxygen, it is 16. Therefore the molecular weight of sulfur dioxide is 64 g/mol.



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