Calculate the percentage of phosphorus in the fertiliser superphosphate `Ca(H_(2)PO_(2))_(2)`
(H = 1, 0 = 16, P = 31, Ca = 40).

Explanation

To calculate the percentage of phosphorus in the fertilizer superphosphate \( \text{Ca(H}_2\text{PO}_2\text{)}_2 \), we will follow these steps:

### Step 1: Calculate the Molecular Mass of Superphosphate

The molecular formula of superphosphate is \( \text{Ca(H}_2\text{PO}_2\text{)}_2 \), which can also be written as \( \text{CaH}_4\text{P}_2\text{O}_4 \). We will calculate the molecular mass using the atomic masses provided:

- Calcium (Ca): 40 g/mol
- Hydrogen (H): 1 g/mol
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