[-] CH4 Homework O| ezto.mheducationcom/hm.tpx Be sure to answer all parts. Phop

Question

[-] CH4 Homework O| ezto.mheducationcom/hm.tpx Be sure to answer all parts. Phophoricacid (GE&PO;) is an important indestrial chemical sed in fertilizers, detergents, and in the food industry. It is produced by two different methods. In the elactric furnace method, elemental phosphorus (Pi) is burned in air to form P Oio, which is then reacted with water to give HPO4 Ia the wet process, the mineral phosphafe rock [CasPod,F] is reacted with sulfuric acid to give H,PO, (and HF and CaSO). (e) Write the balanced equations for the electric furmace method. Include the phase abbreviations. First reactiom: (Assume Pa is a solid.) Classify the step: precipitation acid-base redox Second reaction Classify the step: precipitation acid-base redox (b) Write the balanced equation for the wet process. Include the phase abbreviations. precipitation acid-base redox

Explanation / Answer

Ans

a)

First reaction :

P4(s) + 5O2(g) = P4O10(s)

The reaction is redox reaction .

Second reaction :

P4O10 (s) + 5H2O (l) = 4H3PO4 (aq)

The reaction is redox reaction

b) wet process :

Ca5(PO4)3F (s) +5H2SO4 (aq) = 5CaSO4 (s) + 3H3PO4 (aq) + HF (aq)

The reaction is precipitation reaction

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