Final answer:
The mass of one molecule of the antibiotic penicillin V is approximately 6.45 × 10^-22 grams.
Step-by-step explanation:
The mass of one molecule of the antibiotic known as penicillin V can be calculated by determining the molar mass of the compound. Penicillin V is also known as phenoxymethylpenicillin. The molar mass of penicillin V is approximately 388.45 grams per mole. Therefore, the mass of one molecule of penicillin V can be calculated using Avogadro's number, which is approximately 6.022 × 10^23 molecules per mole.
Mass of one molecule of penicillin V = Molar mass / Avogadro's number
= 388.45 g/mol / 6.022 × 10^23 molecules/mol
≈ 6.45 × 10^-22 grams
So, the mass of one molecule of penicillin V is approximately 6.45 × 10^-22 grams.