Final answer:
The conversion from da(Daltons) to g/mol (molar mass) is direct, and 64,776 Da equals 64,776 g/mol because molar mass is defined as the mass of one mole of a substance.
Step-by-step explanation:
The conversion from daltons (Da) to molar mass (g/mol) is direct because by definition, the atomic mass unit (amu) is such that one dalton corresponds to one gram per mole for a substance. Hence, if a substance has a molecular mass of 64,776 Da, its molar mass would indeed be 64,776 g/mol.
Remember, molar mass is the mass of one mole of substance, and one mole contains Avogadro's number (6.022 × 1023) of entities, whether they're atoms, molecules, or other particles. Thus, when we say that the molar mass of a substance is 64,776 g/mol, we're stating that one mole of this substance will weigh 64,776 grams.