A gram of a molecular substance is the quantity that will have a mass of 1 gram.
The number of grams in a millimole depends on the molecular weight of the substance being measured. To calculate it, you need to know the specific molecular weight of the substance.
No, gram equivalent weight is molecular weight divided by n, where n is the number of equivalents of the substance involved in the reaction. It is not always equal to molecular weight divided by 2.
The gram molecular mass of hydrogen is 1 gram per mole.
Avogadro's number is the number of molecules in a gram molecular weight of any substance. It is ~ 6.02 x 1023.
It's much simpler than you're probably thinking. You use the term gram atomic weight for atoms, and the term gram molecular weight for molecules. That's all. The gram molecular weight of a molecule is the sum of the gram atomic weights of the atoms making up that molecule.
- calculate the molecular mass of the substance from the atomic weights of the contained elements - 1 molecule gram of any substance contain 6,023 141 79.1023 molecules (Avogadro number) - mass of a single molecule is: Molecular mass in grams/Avogadro number
gram molecular weight = weight of one mole of the substance in grams for example 1 mole of water weighs 1 + 1 + 16 = 18 grams so gram molecularweight of water is 18g
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.
One gram-molecular weight of any substance contains Avogadro's number of molecules. For H2SO4, the gram-molecular weight is 98 g (2 for H, 32 for S, and 4 for O), so 1 gram of H2SO4 contains 1/98 moles of H2SO4 molecules, which is approximately 6.02 x 10^23 molecules.
To calculate the gram molecular weight of an unknown liquid, you need to determine the molecular formula of the liquid and then add up the atomic weights of all the atoms in the formula. This will give you the gram molecular weight of the unknown liquid.
The substance with a molecular weight of 765.82 is the antibiotic called Azithromycin.
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