Answer:
1.59 × 10²⁴ molecules
Explanation:
Step 1: Convert the mass to grams
We will use the relationship 1 lb = 453.59 g.
2 lb × (453.59 g/1 lb) = 907.18 g
Step 2: Calculate the moles corresponding to 907.18 grams of sucrose (table sugar)
The molar mass of sucrose is 342.3 g/mol.
907.18 g × (1 mol/342.3 g) = 2.65 mol
Step 3: Calculate the molecules in 2.65 moles of sucrose
We will use Avogadro's number: there are 6.02 × 10²³ molecules of sucrose in 1 mole of sucrose.
2.65 mol × (6.02 × 10²³ molecules/1 mol) = 1.59 × 10²⁴ molecules
