The measured Eocell=+0.321 V. Using EoCr3+/Cr= -0.744 V, calculate Eo Cd2+/Cd in volts Cr (s)|Cr3+||Cd2+|Cd (s) Group of answer choices +1.07 +0.423 -0.403 -1.07 -0.423
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The measured Eocell=+0.321 V. Using EoCr3+/Cr= -0.744 V, calculate Eo Cd2+/Cd in volts
Cr (s)|Cr3+||Cd2+|Cd (s)Step by step
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- The resistances of a series of aqueous NaCl solutions, formed by successive dilution of a sample, were measured in a cell with cell constant (the constant C in the relation K = C/R) equal to 0.2063 cm-1 and the following values were found at 25°C: c/(mol | 0.00050 0.0010 0.0050 0.010 0.020 | 0.050 dm-3) R/W 3314 1669 342.1 174.1 89.08 37.14 Find the molar conductance of Nacl at 25°C at infinite dilution from the graph.A 0.3056 g sample of soluble chloride was analysed gravimetrically for chloride content and 0.7265 g silver chloride was obtained. Calculate the chloride content of the sample in % w/w? MW Cl = 35; Ag = 108distinguish between the circumstances for the use of nRln(V2/V1) and Cvln(T2/T1) in calculating change in S
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- Calculate Ksp for Hg.Cl, from std potential data: Hg,Cl2(s) > Hg, + + 201 Mercury E°,V +0.788 Hg3* + 2e=2Hg(1) 2H9²+ + 2e¯= Hg3* Hg2+ + 2e-= Hg(l) Hg,Cl2(s)+ 2e¯ =2Hg(l) + 2Cl- Hg,SO4(s)+ 2e-=2Hg(1) + SO? +0.920 +0.854 +0.268 +0.6157) A 25.0 ml sample containing Cu gave an instrument reading of 23.6 units (corrected for a blank). When exactly 0.500 ml of 0.0287M Cu(NO3)2 Was added to the solution,the signal increased to 37.9 units. Calculate the molar concentration of Cu" in the sample +2,Part D Let that Za(OH) () is pely insoluble, which signs that the precipitation reaction with NaOH(aq) (pred in the transition) would go to completion Za (aq) + 2NaOH(aq) Zn(OH), () +2Na (₂) you had a 50 L son containing 200 M of Za" (aq) and you wished to add enough 1.30 M NaOH(aq) to precipitate at of the metal, what is the minimum amount of the NaOH(aq) solution you would As that the NaOH(o) son is the only ace of OEE (n) for the precipitation Capress the volume to three significant figures and include the appropriate View Av Haljuj ml. 7