Calcualte the molecular mass of the following:
leculfferent molecules of the same compound may have different molecular masses because they contain different isotopes of an element
Answer:
Molecular mass of H2O = 2(1.008 amu) + 16.00 amu = 18.016 amu
Molecular mass of CO2 = 12.01 amu + 2 x 16.00 amu = 44.01 amu
Molecular mass of CH4 = 12.01 amu + 4 (1.008 amu ) = 16.042 amu
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