In the quantitative estimation of phosphorous by using ammonium molybdate, the formula used is (....

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In the quantitative estimation of phosphorous by using ammonium molybdate, the formula used is
\( \mathrm{P} \)
(1) Percentage of \( \mathrm{P}=\frac{31}{1877} \times \frac{W \times 100}{w} \)
(2) Percentage of \( \mathrm{P}=\frac{62}{1877} \times \frac{W \times 100}{w} \)
(3) Percentage of \( \mathrm{P}=\frac{31}{1877} \times \frac{w \times 100}{W} \)
(4) Percentage of \( \mathrm{P}=\frac{62}{1877} \times \frac{w \times 100}{W} \)
where \( W \) is the mass of ammonium phospho. molybdate and \( w \) is the mass of the compound.


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