What are the molecular masses of the following pharmaceuticals? (a) C33 H35 FN2 O5 (atorvastatin

step 1 I'm asked to find the molecular masses. Now, molecular mass uses the periodic table and units of

What are the molecular masses of the following...

What are the molecular masses of the following pharmaceuticals? (a) $\mathrm{C}_{33} \mathrm{H}_{35} \mathrm{FN}_{2} \mathrm{O}_{5}$ (atorvastatin, lowers blood cholesterol) (b) $\mathrm{C}_{22} \mathrm{H}_{27} \mathrm{F}_{3} \mathrm{O}_{4} \mathrm{S}$ (fluticasone, anti-inflammatory) (c) $\mathrm{C}_{16} \mathrm{H}_{16} \mathrm{CINO}_{2} \mathrm{S}$ (clopidogrel, inhibits blood clots)

What are the molecular masses of the following pharmaceuticals?
(a) $\mathrm{C}_{33} \mathrm{H}_{35} \mathrm{FN}_{2} \mathrm{O}_{5}$ (atorvastatin, lowers blood cholesterol)
(b) $\mathrm{C}_{22} \mathrm{H}_{27} \mathrm{F}_{3} \mathrm{O}_{4} \mathrm{S}$ (fluticasone, anti-inflammatory)
(c) $\mathrm{C}_{16} \mathrm{H}_{16} \mathrm{CINO}_{2} \mathrm{S}$ (clopidogrel, inhibits blood clots)

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Key Concepts

Chemical Formulas

A chemical formula is a representation of the types and numbers of atoms that constitute a compound. It communicates the composition of the compound by listing each element involved along with its subscript, which indicates how many atoms of that element are present. This is fundamental for determining the molecular mass since the formula provides the necessary atomic counts.

Atomic Masses

Atomic masses are the masses of individual atoms, typically expressed in unified atomic mass units (u). They are derived from the relative isotopic abundances of the elements as found in the periodic table. The atomic masses serve as basic building blocks in the calculation of molecular mass, providing a standardized measure for each element present in the chemical formula.

Molecular Mass Calculation

Molecular mass calculation involves summing the products of the atomic mass of each element and the number of times that element appears in the chemical formula. This process uses the stoichiometric coefficients provided by the formula and the respective atomic masses, resulting in the total molecular mass of the compound. Accurate molecular mass calculations are crucial in various fields of chemistry and pharmaceuticals for dosage formulation, reaction stoichiometry, and analytical applications.

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