How to calculate oxidation number of Pb in PbSO4?And Explain? Expert Answer: Let the oxidation number of Pb=x. H in H2 : 0. A compound doesn't have an oxidation number, but an element in a compound does. So, SO42- can be dealt with on its own. b) Identify and write out all redox couples in reaction. Explanation: The oxidation number of S in P b S O 4 = 6. Identify the substance oxidised, reduced, oxidising agent and reducing agent for each of the following reactions: Pb(s) + PbO 2 (s) + 2H 2 SO 4 (aq) → 2PbSO 4 (s) + 2H 2 O(l) Within the sulfate ion, each oxygen does have a -2 oxidation state. gsplcu gsplcu Answer: The central atom is S. Explanation: Look at the structure. The system is compared with measurements on Pb(Hg) in H 2 SO 4 and with Pb(Hg), Hg, solid Pb in HClO 4 solution. D. none of these. Oxidation number of S=+6. Add your answer and earn points. Therefore x+6-8=0. Oxidation number of Pb is +2 Which substance is the reducing agent in the following reaction? You are correct that oxidation is the loss of electrons and reduction is the gaining of electrons. Identify which reactants are being oxidized (the oxidation number increases when it reacts) and which are being reduced (the oxidation number goes down). Nice I mean I kinda said the answer in his question PbSO4 --> Pb2+ + SO4 2- (A net dissociation reaction of the salt) SO4 has an oxidation number of -2. What is the oxidation number of phosphorous in the H3PO2 molecule? Oxidation number of O=-2. Conversion of P b S O 4 to P b S is : A. reduction of S. B. oxidation of S. C. dissociation. MEDIUM. Answer. Pb. If you consider oxidation as the loss of electrons and gain of oxidation number, and reduction as the gain of electrons and decrease in oxidation number, the oxidation states are as follows: Pb : 0 (Elementary state) H in H2SO4 : +2. Sum of all oxidation number =0. Since the ion has a -2 charge, the oxidation state of sulfur must be +6. Oxidation number pbso4 Therefore, the oxidation number of S in PbSO4 is +6. THat leaves, though, the oxidation state of Pb to be +2. The total should equal when you add all oxidation numbers: Pb + (-2) = 0 ----> Pb = +2. H2O2 + PbS --> PbSO4 + H2O. It is suggested that a precipitation mechanism to form PbSO 4 occurs under some conditions prior to the solid state … Asked by | 25th Mar, 2009, 06:56: PM. Conversion of PbSO4 to PbS ... chemistry. Now, since O is always -2, the S must be +6 to make the whole compound zero. Pb +2 S -2 + H +1 2 O -1 2 → Pb +2 S +6 O … Pb PbO2 PbSO4 H2O H2SO4. Fe2S3 + 12HNO3 → 2Fe(NO3)3 + 3S + 6NO2 + 6H2O For a simple ion, like Pb in PbSO4, it is the same as the ionic charge, ie +2. Pb +2 S-2 + H +1 2 O-1 2 → Pb +2 S +6 O-2 4 + H +1 2 O-2 . Pb in PbSO4 : +2. The anodic oxidation of solid Pb in H 2 SO 4 to form PbSO 4 has been investigated by rotating disc, potentiostatic pulse and ac impedance measurements. Thank me later Shaawana is waiting for your help. 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