How many molecules of table sugar are contained in a 2 pound bag of sugar

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

water and alcohols have similar properties because water molecules contain hydroxyl groups that can form hydrogen bonds with other water molecules and with alcohol molecules, and likewise alcohol molecules can form hydrogen bonds with other alcohol molecules as well as with water.