Questions and Answers
What does the molecular mass of a substance represent?
The sum of average atomic masses of all atoms in the molecule
How is the molecular mass of a substance calculated?
Multiplying average atomic mass of each element by the number of its atoms and adding them together
What is the molecular mass of carbon dioxide (CO2)?
$44.0$ u
In the molecule C6H5Cl, what does '6' represent?
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What is the molecular mass of H2SO4?
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What is the mass of one hydrogen atom in grams?
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In the present atomic mass system, what is the standard element used for determining atomic masses?
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What is the exact mass assigned to an atom of carbon-12 in the atomic mass unit system?
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How is an atomic mass unit (amu) defined in terms of the mass of a carbon-12 atom?
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What unit has recently replaced the atomic mass unit (amu) and is symbolized by 'u' or 'Da'?
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