Question

which conversion factor allows us to move between moles and mass? 1 mole = 6.02 x 10²³ particles 1 mole = molar mass 1 mole = 22.4 l

Explanation:

To determine the conversion factor between moles and mass, we analyze each option:

• The first option (\(1\) mole \(= 6.02\times10^{23}\) particles) is Avogadro's number, used for converting between moles and number of particles, not mass.
• The second option (\(1\) mole \(=\) molar mass) is correct. Molar mass (in grams per mole) is the mass of one mole of a substance, so it allows conversion between moles and mass (e.g., mass \(=\) moles \(\times\) molar mass, moles \(=\) mass \(\div\) molar mass).
• The third option (\(1\) mole \(= 22.4\) L) is the molar volume at STP, used for converting between moles and volume of a gas, not mass.

Answer:

B. 1 mole = molar mass (assuming the options are labeled A, B, C with the second option as B; if the original options have different labels, adjust accordingly based on the second option being "1 mole = molar mass")