How many moles of hydrogen, phosphorus and oxygen are there in 0.4 moles of phosphoric acid (`H_(3)PO_(4)`) ?

Explanation

To find the number of moles of hydrogen, phosphorus, and oxygen in 0.4 moles of phosphoric acid (H₃PO₄), we can follow these steps:

### Step 1: Identify the composition of phosphoric acid (H₃PO₄)
Phosphoric acid consists of:
- 3 hydrogen (H) atoms
- 1 phosphorus (P) atom
- 4 oxygen (O) atoms

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