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- One day in lab, while adding a gnarled root to a dark liquid bubbling in an iron cauldron, your friend Carmen (an expert chemist) says this: "Metal sulfides roasted with oxygen produce the corresponding oxide and sulfur dioxide gas." Using Carmen's statement, and what you already know about chemistry, predict the products of the following reaction. Be sure your chemical equation is balanced! olo Ag,s (s) → [ + 0,(8) 2 Ar NO O+0 REACTIONA dimensional analysis setup to determine the mass of Fe that can be fully oxidized by 8.93 grams of O2 is shown. Explain what is incorrect in this setup and how to fix the setup to make it correct. 4Fe + 30, → 2Fe,03 1 mole O2 3 mole O, 55.847gFe 8.93go, x 31.998gO, 1 mole Fe gFe 4 mole Fe ----Balance the equation in basic conditions. Phases are optional. equation: SO3 + Co(OH)2 SO3+ Co(OH)₂ →→ Co + SO²- - Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemistry | Publisher: University S
- R = 8.314 mol·K F = 96,485 mol AG° + RT · In(Q) AE° () · In(Q) AG ΔΕ %3D Half Reaction (Note: All given as reduction) E° (V) 02 (g) + 4 H*(aq) + 4 e → 2 H20 (I0) 1.229 Z2 (s) + 2 e - → 2Z (aq) 0.426 (aq) + 3 e A (s) 0.292 2 H20 (1) + 2 e G2+ (aq) + 2 e M2+ (aq) + 2 e Н2 (в) + 2 ОН" (aq) - 0.828 G (s) - 1.245 M (s) - 1.893 Using a U-tube, a student sets up a non-spontaneous electrochemical cell with a battery connected to two carbon electrodes that are submerged in 1 M MZ2 (aq) solution (M is a metal and Z is an anion composed of the newly discovered element Z). Use the reference information given in the table above to answer the following three questions. Question 10 Oxidation will occur at the while reduction will occur at the Possible answers are "anode" and "cathode".Calculate AG for the reaction 2 H2S(g) + SO2(g) 53 Srhombie(s) + 2 H2O(g) For the following conditions at 25°C: PH,8=0.0002 atm Pso, =0.0129 atm PH,0=0.0503 atm AG°F H2S(g) = -34 kJ/mol SO2(g) = -300. kJ/mol H20(g) = -229 kJ/mol AG kJ %3DUsing the equation 2Mn(OH)2(s)+O2(aq)->2MnO(OH)2(s), Determine the number of moles of MnO(OH)2 Formed for every one mole of O2 consumed. Show work.
- Iron can be extracted from the iron(III) oxide found in iron ores (such as haematite) via an oxidation-reduction reaction with carbon. The thermochemical equation for this process is: 2 Fe2O3(s) + 3 C(s) → 4 Fe(l) + 3 CO2(9) ΔΗ = +467.9 kJ8. A 2.856-g sample of limestone was analyzed for Fe, Ca, and Mg. The iron was determined as Fe;Os, yielding 0.04561 g. Calcium was isolated as CaSO4, yielding a precipitate of 1.487 g, and Mg was isolated as 0.1599 g of Mg;P2O7. Report the amount of Fe, Ca, and Mg in the limestone sample as %w/w FeO, %w/w CaO, and %w/w MgO.Calculate AG for the reaction 2 H2S(g) + SO2(g) 53 Sthombic(s) + 2 H2O(g) For the following conditions at 25°C: PH,s=0.0001 atm Pso; =0.0290 atm PH,0=0.0219 atm AG°? H2S(g) = -34 kJ/mol SO2(g) = -300. kJ/mol H20(g) = -229 kJ/mol AG = kJ
- Write the balanced net ionic equation for the reaction of aqueous sodium sulfate with aqueous lead(II) nitrate. Include phases. net ionic equation: Pb2+ (aq) + S²- (aq) PbS(s) Incorrect SPECIAL ΔΣΩ λμπ x"| Xo EX| (s) (1) || (aq) (g) () [] CLRR = 8.314 mol·K F = 96,485 mot AG = AG° + RT · In(Q) ΔΕΔΕ-).In(O) Half Reaction (Note: All given as reduction) E° (V) 02 (g) + 4 H*(aq) + 4 e¯ → 2 H20 (1) 1.229 2 z" (aq) Z2 (s) + 2 e 3+ (aq) + 3 е 0.426 A (s) 0.292 2 H20 (1) + 2 e G2+ (aq) + 2 e H2 (g) + 2 OH (aq) - 0.828 G (s) - 1.245 > M2+ (aq) + 2 e - 1.893 → M (s) A student constructs a voltaic electrochemical cell with two metal electrodes [metal G and metal A] in their respective aqueous nitrate solutions [G(NO3)2 and A(NO3)3]. Use this information, as well as the reduction potentials in the table above to complete each statement below. Consider the same cell from the above prompt. Calculate AG° in kJ/mol for this galvanic cell. Report your answer with 4 significant figures. You do not need to report units with your answer. If your value is negative, make sure to include a "-" symbol.Comparing the two quantities based on the given condition, which is greater I or II? or are they equal? Can the quantities be determined given the information? A plant sample was analyzed for Fe I. % w/w Fe II. % w/w FeO
