(a) Sodium (Na):
- The atomic mass of sodium (Na) is approximately 22.99 g/mol.
(b) Lead (Pb):
- The atomic mass of lead (Pb) is approximately 207.2 g/mol.
(c) Diazepam (Valium), $\mathrm{C}_{16} \mathrm{H}_{13} \mathrm{ClN}_{2} \mathrm{O}$:
- Calculate the
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