1. Weight of the fertilizer sample _______122_____ g

2. Weight of the filter paper _______0.200_____ g

3. Weight of the filter paper + precipitate MgNH₄PO₄ 6 H₂O _______0.598_____ g

4. Weight of MgNH₄PO₄ 6 H₂O ________________ g

5. Molar Mass of MgNH₄PO₄ 6 H₂O _______________ g/mol

6. Molar Mass of P₂O₅ _______________ g/mol

7. *Mass of phosphorus in fertilizer (show work) ________________ g

Calculations:

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