Equil [FESCN*] Equil [Fe*] Equil [SCN] (mM) Abs @448 (mM) (mM) 0.616 0.000697 0.00151 0.00151 0.485 0.000601 0.00160 0.00125 0.391 0.000532 0.00167 0.00097 0.257 0.000433 0.00177 0.00072 0.139 0.000347 0.00186 0.00046
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What is the the average Kc (equilibrium constant) based on this table?
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- Helppppppppppppppppp:///////&/&&&/@/@/“@@/@/@@-@-/An enzyme catalyzes a reaction with a KmKm of 7.507.50 mM and a VmaxVmax of 3.00 mM⋅s−1.3.00 mM⋅s−1. Calculate the reaction velocity, v0,v0, for each substrate concentration. a. [S]=4.00mM*s^-1 b. [S]=7.5mM*s^-1Reaction Conc. Na2S2O3 Conc. HCI A Abs. A Time (s) Rate (Δ Abs./jΔ Time) 1 0.10 M .30 М 1.3686611 1.007568 1.358380874 0.300349 |0.01870913 0.10 M .15 M 1.5360817 5.114311671 3 0.050 M .30 M 1.2267196 65.56796601 4 0.025 M .30 М 0.9563164 0.02870913 11.3085840 POSTLAB QUESTIONS 1. Compare the rates of reactions 1, 3 and 4. What is the effect on the reaction rate of halving the thiosulfate concentration? What is the order of the reaction in sodium thiosulfate?
- Reaction Conc. Na2S½O3 Conc. HCI A Abs. A Time (s) Rate (A Abs./ga Time) 1.007568 0.300349 0.01870913 0.02870913 1 0.10 M .30 М 1.3686611 1.358380874 0.10 M .15 M 1.5360817 5.114311671 3 0.050 M .30 M 1.2267196 65.56796601 4 0.025 M .30 M 0.9563164 11.3085840 4. Use experimental data and the rate law to calculate a rate constant for each reaction 1, 2, 3, 4. How do the rate constants compare? Should they be the same or different? Discuss in your conclusions. Report the average value of your calculations. Be sure to include units in your rate constant. The rate law of the reaction is shown below: Rate = [Na2S2O3]-2[References) Use the References to access important values if needed for this question. In a study of the gas phase decomposition of dimethyl ether at 500 °C CH;OCH;(g)- →CH4(g) + H2(g) + CO(g) the concentration of CH,OCH, was followed as a function of time. It was found that a graph of In[CH,OCH] versus time in seconds gave a straight line with a slope of -6.28x10s and a y-intercept of -3.50 Based on this plot, the reaction i Đ order in CH,OCH, and the rate constant for the reaction is zero first second Submit Answer Try Another Version 2 item attempts remaining (Previous 12 étv ll MacBook Air 80 DII DD F2 F3 F4 F5 F6 F7 F8 F9 F10 F11 @ #3 $ & * 4 6. 7 8 W E R Y { S G J K く C V ...- ~の * 00 ラ エ BThe equation 96 250Cm-?+ Sr+4n is correctly completed as 96 250Cm→ 14Ce+ 2Sr+4{n. A) True B) False
- Reaction Velocity (mm/sec) Ma no !! L [1 1 L IM 3M FO Substrate Concentration (M) 1. IN Which statement is true? KM AN ALM 4V The graph above displays the kinetic profiles of the same enzyme catalyzing two different substrates. The red curve displays the higher turnover number (kcat). The red curve displays higher affinity between substrate and enzyme. The blue curve displays competitive inhibition. The red curve displays higher cooperativity,Which of the following is a heterogeneous catalysis? N2O(g) + Au(s) <=> N2(g) + ½ O2(g) + Au(s) HCl(aq) + NaOH(aq) <=> NaCl(aq) + H2O(l) ZnCO3(s) + 2H+(aq) <=> Zn2+(aq) + H2S(aq) 2Ce+4(aq) + Tl+(aq) <=> 2Ce+3 (aq) + Tl+3(aq)NH4+ {aq) + NO2(aq) -> N2(g) +2H2O{l} Data Initial [NH4+] Initial [NO2-] rate 1 0.0100 0.200 5.4 x10-7 2 0.0200 0.200 10.8x10-7 3 0.0400 0.200 21.5x10-7 4 0.200 0.0202 10.8x10-7 5 0.200 0.0404 21.6x10-7 6 0.200 0.0808 43.3x10-7 Find x,y,k
- The following data were obtained for the adsorption of a certain material (ORA) on activated carbon at 25 °C. Sample number [ORA) initial (M) [ORA] at equilibrium Activated carbon mass (M) (g) 1.0119 0.0096 0.0044 1 2 1.0186 1.0360 0.0289 0.0578 0.0207 3 0.0446 4 1.0129 0.0867 0.0721 1.0393 1.0312 0.1002 0.1270 0.1742 0.1156 6. 0.1445 7 1.0198 0.1926 8 1.0270 1.0252 0.2407 0.2227 0.2889 0.1108 4. If a monolayer of N2 molecules is 0.03075 mole per one gram of activated carbon, and the surface area on one N2 molecules is 0.162 nm2, determine: a. surface area per one gram of activated carbon b. surface area of one ORA molecule7. Copper(I) chloride salt is added to a solution of pure water to make a saturated solution. Upon dissolving, the concentration of copper(I) ion was found to be 4.15 x 10-4. What is the Ksp of copper (I) chloride? ©2022 F'22/S'23 Chemistry II A: 1.72 x 10-7 131The following data were obtained for the adsorption of a certain material (ORA) on activated carbon at 25 °C. Activated carbon mass (g) 1.0119 [ORA) initial (M) [ORA] at equilibrium (М) Sample number 1 0.0096 0.0044 1.0186 0.0289 0.0207 3 1.0360 0.0578 0.0446 4 1.0129 0.0867 0.0721 5 1.0393 0.1156 0.1002 6. 1.0312 0.1445 0.1270 7 1.0198 0.1926 0.1742 0.2227 1.0270 0.2407 1.0252 0.2889 0.1108 1. Try fitting these data using Langmuir Isotherm and obtain K and monolayer of ORA molecules per one gram 2. Try fitting these data using Freundlich Isotherm and obtain its constants 3. Which isotherm describe best the adsorption of ORA on activated carbon and why? 4. If a monolayer of N2 molecules is 0.03075 mole per one gram of activated carbon, and the surface area on one N2 molecules is 0.162 nm, determine: a. surface area per one gram of activated carbon b. surface area of one ORA molecule