10 Define formula mass and find out the formula mass of NaCl2 11 9 Dry the shares of? and ?P orhitals?
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Answer:Formula unit mass is defined as the sum of the mass of all the atoms each multiplied its atomic masses that are present in the empirical formula of a compound. It is expressed in amu.
Atomic mass of calcium = 40 amu
Atomic mass of chlorine = 35.5 amu
Formula mass of CaCl2 = (1 x 40) + (2 x 35.5) = 111amu
Explanation:
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