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Precision and Accuracy

"Phosphorus c...

Question

"Phosphorus can be estimated by converting it into phosphates and then precipitating as $M g N H_{4} P O_{4}$ ." Answer whether the above statement is true or false.
If true enter 1, else enter 0.

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Solution

Phosphorus can be estimated by converting it into phosphates and then precipitating as $M g N H_{4} P O_{4}$ (by adding $N H_{4} O H$ and $M g^{2 +}$ ).
$P H N O_{3}, △ ⟶ H_{3} P O_{4}$
$H_{3} P O_{4} + N H_{4}^{+} + M g^{2 +} ⟶ M g N H_{4} P O_{4} + 3 H^{+}$
On ignition, while ppt of $M g_{2} P_{2} O_{7}$ is obtained:
$2 M g N H_{4} P O_{4} △ ⟶ M g_{2} P_{2} O_{7} + 2 N H_{3} + H_{2} O$
Hence, the given statement is correct.

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