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(Solved): The chosphorus in a 4 406-g sample of a plant food wat converted to \( \mathrm{PO}_{4}{ }^{3} \) an ...
The chosphorus in a 4 406-g sample of a plant food wat converted to \( \mathrm{PO}_{4}{ }^{3} \) and preciptased as Ag3PO4 by adding \( 75.00 \mathrm{~mL} \) of \( 0.0810 \mathrm{MAgNO} \). \[ \begin{array}{l} \mathrm{P}_{2} \mathrm{O}_{3}+9 \mathrm{H}_{2} \mathrm{O} \rightarrow 2 \mathrm{PO}_{4}^{3}+6 \mathrm{H}_{1} \mathrm{O}^{+} \\ 2 \mathrm{PO}_{4}^{3-}+6 \mathrm{Hg}^{+}+2 \mathrm{Hg}_{3} \mathrm{PO}_{4}(x) \end{array} \] The excess \( \mathrm{AgNO}_{3} \) was back-totated with \( 230 \mathrm{~mL} \) of \( 0.0050 \mathrm{M} \mathrm{KSCN} \) \[ \mathrm{Ae}^{+}+5 \mathrm{CN}-\operatorname{AesCN}(x) \] - Wrie your antwer weth 3 significant Figures QUESTION 10 The \( \mathrm{CO} \) in a 27.7.L sample of gas was converted to \( \mathrm{CO} \) by passing the sample over \( 12 \mathrm{O} 5 \) heated to \( 150^{\circ} \mathrm{C} \). \[ \mathrm{I}_{2} \mathrm{O}_{3}(\mathrm{~s})+5 \mathrm{CO}(\mathrm{s})+5 \mathrm{CO}_{2}(\mathrm{~g})+\mathrm{I}_{2}(\mathrm{~s}) \] The lodine was datiled at this temperature and was collecled in an absorbel contaning \( 6.54 \mathrm{~mL} \). of \( 0.01159 \mathrm{M} \mathrm{Na} 5203 \) \[ f_{2}(s)+2 S_{2} O_{3}^{2-}(a q) \rightarrow 2 J^{-}(a q)+S_{4} O_{-}^{2-}(a q) \] - Whte your answer with 3 sygnificant Figures