De Difference blew Static and dynamic quilibrium? Qa: units of K´and in in Freundsch adsorption isotherm? 03: Examples of 14 Shoight Line Ехапры equation • Y == -mx @ Y = n a zmx @ Y ² mx + c @ Y₁ = mx + c
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- eleganceextreme1 X (208) + X 7571&snapshotld=1324548&id =563649000&takeld=4bfba59b09f0e5b& aSearch this course References Use the References to access important values if needed for this question. A student ran the following reaction in the laboratory at 639 K: H2(g) + I>(g 2HI(g) A-Z When she introduced 0.311 moles of HI(g) into a 1.00 liter container, she found the equilibrium concentration of HI(g) to be 0.249 M. Calculate the equilibrium constant, K, she obtained for this reaction. Kc Submit Answer K from [Initial] and One [Equilibrium]: This is group attempt 1 of 5 Next Autosaved at 12:59 PM Back 1:05 PM 4x 11 9/24/2019 hp delete prt sc insert 12 f11 10 144Gravimetric assay of sulfuric acid involves step of precipitation by: BaCl2 Са(ОН) AGNO; FeCl3(a) (i) Ksp value of Cul is 5.0 x10-12 mol2dm at 25 °C. Calculate the maximum number of moles of Cul that can be dissolved in 1 dm³ of water at 25 °C. (ii) Calculate the maximum number of moles of Cul that can be dissolved in 1 dm³ of 0.1 moldm³ of Nal solution at 25 °C.
- The activity of H,O in 35 wt% H,SO,, measured by lowering of the vapor pressure of H,0, is 4 = 0.66 at 25 °C.27 Activities of SO?- and H* cannot be measured separately, but the mean activity AlH,0 = mµ,0YH,0 can be measured. For a salt Cm A, with cation C"+ and anion A"-, the mean activity coefficient is defined as Y± = (r" r")m+n), where y, and y_ are the individual activity coefficients. The mean activity is a thermodynamically defined, measurable quantity. For 5.5 m H,SO,, Y± = (rj-Yso?-)3 = 0.22 at 25 °C27 (as measured from galvanic cells 0.22 in the Nernst equation, along with mµ = 11.0 mol/kg and containing H, SO,). Use A,0 = 0.66 and y± = 5.5 mol/kg, to calculate the voltage of the lead-acid battery. %3| mso?- Ecell V IncorrectCalculate the mean ionic molality for 0.25m LaCls. [Ans. 1.1914 m] 570 nsmer For aqueous HCl solutions, it can be determined: Y- =0.72515 + 0.029188m + 0.055959m Determine the molality at which auCi= 1. (Note: This is the molality for the standard state of HCL in Water; pHCI) [Ans. 1.1914 m] %3DKsp = 6.7 x 10-³1 for Cr(OH)3 at 25 °C, what is the molar concentration of Cr³+ at 25 °C? M (example: type in 3.4E-5 for 3.4x10-5). Please pay attention to the number of sig. figs. in your answer. The molar concentration of OH is
- - 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 Checkive. ive. ive. 6) is al number incur 10. If x is amount of adsorbate and m is amount of adsorbent, which of the following relations is not related to adsorption process? (a) x/m = f (p) at constant T (b) x/m = f(T) at constant p (c) p = f(T) at constant (x/m) (d) = pxT m TOKOLL Postion of (a) polar inner (b) polar surface (c) distribu (d) are preI CottizO, ,+ L6O2-76ocOz+ Lott2+362.5 KJ what are the molors masses You You might need ? H2O? +20?
- Parameters to use for the problems that follow: K = 1.38 × 10-23 J/K q= 1.6 × 10-¹9 coulombs For Silicon at room temperature(T = 300°K): EG = 1.12eV N₁ = = 1 × 10¹0 cm-3 ESi = Ksito (11.8) (8.85 × 10-¹4)F/cm = Hp = 384.62cm²/V - sec, Dp = 10cm²/sec Dn = 32cm²/sec 1230.77cm²/V – sec, flin = Tn = 2.0 × 10-¹sec, Tp = 9.0 x 10-5 sec En = 8.0 × 10-2cm, Ep = 3.0 × 10-²cm 1) A sample of silicon at room temperature and in thermal equilibrium is doped with donor atoms such that ND = 4 x 10¹5 cm-³. Determine the concentration of electrons and holes. NDCo 5 .. Aktiv Chemistry Welcome to MyTCC X b Home | bartleby 403 Forbidden: Ac... 1 + Complete the balanced molecular chemical equation for the reaction below. If no reaction occurs, write NR after the reaction arrow. Be sure to include the proper phases for all species within the reaction. CoCl₂(aq) + K₂S(aq) ( 2 □ CI Reset Cu F5 000 3- T 3 F6 4 0²-0 X QYour Sets | Quizlet P Question 46 of 50 03 04 05 06 07 08 C F7 5 6 7 8 9 Co - 2+ 3+ 4 4+ ASUS FB K NR 8 X ** H₂O F9 9 F10 Ac (1) (g) (aq) S 0 Sign In or Sign Up | Chegg.cc X Do Delete 8 O Prt. Sc + W 4Assume that 1.00 mL (1.02 g) of crude product mixture is obtained from the reactionbefore the washing steps, and the distribution constant of the product mixture in brine isK = (Cmixture/Cbrine) = 50.0. Assuming that after mixing the product mixture volume isstill 1.00 mL (i.e., the volume lost is small), and the volume of the first brine wash layeris 2.00 mL. What mass (grams) of product mixture is lost (dissolves) in the first brinewash? (See Technique 13.2, p 53.) Show work.