Solution: Kso=1.41-10-11 The resistance of a saturated solution of PbSO4 (very insoluble salt) at 291K is of 1.7x106 0, being the resistivity of pure water 7.1x105 Ocm. 1. Determine the solubility product of PBSO4 at 291K knowing that Am° (SO4 2)=136 0-1cm?mol 1 and Am° (Pb+2)=122 o-lcm?mol1. 2. How many centimeters will the ion move Pb+2 in one second when applying a potential difference of 25V between two electrodes 1 cm apart?
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- Electroly Concentr X Chapter Partial P henrys la x My Q 'index.html Sodium hydroxide is a white, crystalline basic salt that readily dissociates in water to produce a strong base NaOH(s) – - Na* (aq) + OH (aq) According to the CRC Handbook of Chemistry and Physics, sodium hydroxide (NaOH; m.m. = 39.997 g mol-1; d = 2.13 g cm 3) has an aqueous solubility of 100.0g/100g at 20 °C. Below is a table of aqueous sodium hydroxide densities (in kg L-1) at varying concentrations (wt%) and temperatures (from handymath). Conc. (wt%) 0 °C 10 °C 20 °C 40 °C 60 °C 80 °C 100 °C 1.0124 1.0107 • 1.0095 1.0033 0.9941 0.9824 0.9693 2 1.0244 1.0220 1.0207 1.0139 1.0045 0.9929 0.9797 4. 1.0482 1.0444 1.0428 1.0352 1.0254 1.0139 1.0009 8 1.0943 1.0889 1.0869 1.0780 1.0676 1.0560 1.0432 12 1.1399 1.1333 1.1309 1.1210 1.1101 1.0983 1.0855 16 1.1849 1.1776 1.1751 1.1645 1.1531 1.1408 1.1277 20 1.2296 1.2218 1.2191 1.2079 1.1960 1.1833 1.1700 24 1.2741 1.2658 1.2629 1.2512 1.2388 1.2259 1.2124 28 1.3182 1.3094…1.065g of MgO (Analyte) of 84.74% were treated w/ 50ml of 1.02N H2SO4 (Acidic Titrant), and 48.28 mL of NaOH (Base Titrant) 1.103N concentration MW of analyte: 40Meq of analyte: 0.02NaOH vol: 48.28 Compute for the meq weight consumed by the acidic titrant (g-meq)- 144 / Natural Sciences / Chemistry And Polymer Science / Chemie zzes / Oplossingsewewig | Solubility Equilibria A solution contains 0.002 M Ag* and 1.6 x 105 M Zn2*, and the ions need to be separated. For this purpose co- is added to the solution so that both Ag,CO3 (Ksp = 8.1 x 10-12) and ZnCO3 (Ksp = 1.0 x 10-10) can precipitate from the solution. What will the concentration of co; be just before the first salt starts to precipitate. (Please give your answer with 2 significant figures.) Answer Check
- ) 0.025 M CH3COOH solution has a specific conductance of 2.33X10-4 Scm-1,and molar conductivity at infinite dilution is 364.13 S.Cm2.mol-1. What is itsdegree of dissociation?s- Homework - 2022.pdf - Adobe Acrobat Pro DC (32-bit) E-Sign Window Help Chapter 14 - Soluti. x 日 Q 1/3 135% - 6) What volume (L) of a 0.277 M KBr solution is needed to provide 13.4 g of KBr? 2olusolorm stuloe (2)-(5)anivab rbidW eslorm (1) v) gumu (5) (C) gntweb ( quam boesam eti bas bonsqoiq ai p02gsto noituloe euooups nA (S oloe srb lo viiensb srfl .noituloe orb to yiralom ord atsluoliQ3/ Calculate the solubility of barium carbonate BaSO4 in a solution containing MgSO4 0.04M taking into consideration the activities. Compare the result if the effectiveness is not taken into consideration, KSP BaSO4 = 1.08 x 10 -10
- °C) out, an of water dissipate Problems & 00.13o Im 0.20 or latsm IntsmgM to 3 00. gaibbA00.0 .00% 6.61. Designing Cold Packs If you were designing a chemical cold pack, which of the following salts would you choose to provide the greatest drop in temperature per gram: NH4Cl em (AHsoln = 14.6 kJ/mol), NH4NO3 (AHsoln = 25.7 kJ/mol), or NaNO3 (AHsoln = 20.4 kJ/mol)?(i) (ii) (iii) (iv) 'I OMe HO H g H N Me Br SnMe3 OSiMe3 CHO OH NaNH, NH3 (1) Phl, Pd(PPH3)4 THF, reflux 1. Ph3P=CMe2 2. "Bu4NF 3. H30 + CH₂12, Zn C C₂H₂NO D C₁1H₁1N E C10H16O F C15H26O21.5m 6A 200. mL solution that is 6.7 x 104 M in Cu²+ is mixed with 0.30 mole NH3. There is no change in volume as NH3 is bubbled in. What is the final [Cu]? Kf Cu(NH3)42 = 5.6 x 10¹¹ 124 . Kover= ksp kf 5." -9 Cu2++NH₂ CU(NH3) 4² 2+
- grammarly-G X * Content oard.odu.edu/ultra/courses/_393452_1/cl/outline F2 Question Completion Status: X GA student wan X 1 QUESTION 3 A student wants to determine the solubility of water and copper (1) bromide (a green solid) in ethyl acetate (a colorless organic liquid). She places 1 mL of ethyl acetate into each of two test tubes. To one, she adds 5 drops of water to it. To the other, she adds a small scoop of copper(1) bromide. 8.0 F3 2 - Which test tube represents the ethyl acetate and A. Test tube 1 copper(1) bromide if the copper(1) bromide is insoluble in ethyl B. Test tube 2 acetate? C. Test tube 3 D. Test tube 4 - Which test tube represents the mixture of the ethyl acetate and water if the water is insoluble in ethyl acetate? $ Question Com X C Chegg Search x 3 Which test tube represents the mixture of the ethyl acetate and water if the water is soluble in ethyl acetate? - Which test tube represents the ethyl acetate and copper(1) bromide if the copper(1) bromide is soluble…14. The conductivity of 0.20 MKC solution at 298 Kis 0.0248 Sam-1. What will be its molar conductivity? (a) 124 Samf (b) 124 cm' (c) 124 ohm' an equiv¹ (d) 124 Sam³ md-¹A solution of HCl was titrated against sodium carbonate. What is the average normality of acid in the given data? (MW Na₂CO3 = 106) T2 0.3479 0.3562 0.3042 Weight (g) Initial V (ml) 0.80 1.60 35.20 36.70 39.80 Final V (mL) Vol HCl used (mL) 35.10 39.40 N of HCl (eq/L) 0.1954 0.1870 Average N of HCl (eq/L)