GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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grams
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grams/mole
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mole
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moles/gram
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Detailed explanation-1: -The molar mass/molecular weight is actually the sum of the total mass in grams of the atoms present to make up a molecule per mole. The unit of molar mass is grams/mole.
Detailed explanation-2: -The molar mass is defined as the mass of a given substance divided by the amount of a substance and is expressed in g/mol.
Detailed explanation-3: -The unit to measure the molar mass of the compound is grams per mole or g/mol. The molar mass is defined as the mass of 1mol, which is in the SI measured in g/mol. Example: The molar mass of water H2O: MM=18.016g/mol .
Detailed explanation-4: -Because of the way in which the mole is defined, for every element the number of grams in a mole is the same as the number of atomic mass units in the atomic mass of the element. For example, the mass of 1 mol of magnesium (atomic mass = 24.305 amu) is 24.305 g.