Concentrated nitric acid oxidises phosphorus to phosphoric acid according to the following equation:
`P + 5HNO_3"(conc.) "rarr H_3PO_4 + H_2O + 5NO_2`
If 9.3 g of phosphorus was used in the reaction, calculate :
The mass of phosphoric acid formed.

Explanation

To solve the problem of how much phosphoric acid (H₃PO₄) is formed from 9.3 g of phosphorus (P) when reacted with concentrated nitric acid, we will follow these steps:

### Step 1: Write down the balanced chemical equation.
The balanced equation for the reaction is:
\[ P + 5 HNO_3 \rightarrow H_3PO_4 + H_2O + 5 NO_2 \]

### Step 2: Calculate the molar mass of phosphorus (P).
The molar mass of phosphorus (P) is:
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