Which weighs more, 5.00 g or 0.0225 mol of acetaminophen (C8H9O2)?

Molar mass is the mass of one mole of a substance, typically expressed in grams per mole (g/mol). For acetaminophen (C8H9O2), the molar mass can be calculated by summing the atomic masses of its constituent elements: carbon (C), hydrogen (H), and oxygen (O). This value is essential for converting between grams and moles, allowing for comparisons of mass in different units.

To compare weights in grams and moles, one must convert moles to grams using the molar mass. The formula is: mass (g) = number of moles × molar mass (g/mol). This conversion is crucial for determining which quantity weighs more, as it allows for a direct comparison of the two measurements.

Comparative weight analysis involves evaluating two or more quantities to determine which is heavier. In this case, after converting 0.0225 moles of acetaminophen to grams using its molar mass, one can directly compare the resulting weight to the given 5.00 g. This analysis is fundamental in chemistry for understanding relationships between different forms of measurement.