How many water molecules are generated when 3.60 moles of ammonia react according to the following equation: 3PbO+2NH3→3Pb+N2+3H2O

Use 6.022×1023mol−1 for Avogadro's number.
Your answer should have three significant figures.

3.25 × 10²⁴ molecules of water

Explanation:

Step 1: Write the balanced equation

3 PbO + 2 NH₃ → 3 Pb + N₂ + 3 H₂O

Step 2: Calculate the moles of water formed from 3.60 moles of ammonia

The molar ratio of NH₃ to H₂O is 2:3. The moles of water formed are 3/2 × 3.60 mol = 5.40 mol

Step 3: Calculate the molecules in 5.40 moles of water

We will use Avogadro's number: 6.022 × 10²³ molecules/mol.

5.40 mol × 6.022 × 10²³ molecules/mol = 3.25 × 10²⁴ molecules

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