1. To explain why culture medium is sterilized with higher temperature and short time according to theory of d In K ΔΕ dT moist - heat sterilization: T is the absolute temperature. R.T where E is the activation energy, R is the gas constan

An experiment was performed in a similar manner as Experiment 4 (The Hydrolysis of t-Butyl Chloride). The following data was obtained: Total Time (s) Volume NaOH Titrant used (mL) 46 2.01 91 3.97 131 5.98 175 8.03 220 10.00 266 11.99 311 14.01 357 15.97 401 17.98 450 20.02 Final Volume NaOH to fully react sample: 85.01 mL Assume the proposed reaction mechanism in the experimental procedure is correct. Based on the above measurements, how many minutes would it take for the solution to reach 81.0% completion? Round your final answer to two decimal places.

2. As you are probably aware, some proteins "glow," most famously Green Fluorescent Protein (2008 Nobel Prize in Chemistry). The color of these proteins can be shifted by an elimination reaction as described in the article "The E1 Mechanism in Photo-Induced B-Elimination Reactions for Green-to-Red Conversion of Fluorescent Proteins." NRVF. NRVF. His-Nu H N-ATTL. KİKGRX ATTL. HO NH HO His-Ce hv His-CB a) Propose a simple mechanism for the reaction using arrow pushing. b) How might His-Na (which sits in the surrounding protein) accelerate the reaction? To initiate the reaction, should this histidine be in its acid or conjugate base form? Draw this form of histidine side chain. c) How about His-CB? d) Provide a brief explanation of why the reaction yields a shift from green to red color.

Given the transition state diagram(s) below, identify the mechanism(s) of catalysis. Mg2+ Mg2+ H OH H-C-H HOH H H - (M₂C)N= H H-C-H HO -H H- HO -H OH-O -O-H- H-N(CH₂) CH₂OH H H₂C H H LN (CH2) H OH HOH:N (0³H)² CH₂OH H₂C t

Our body obtains energy from the combustion of glucose. During this process, glycerate is transformed first into pyruvate. This reaction has an activation energy close to 44 kJ. Estimate how many times faster this reaction is when someone has a high fever close to 106 F (41 oC) compared to its rate at normal body temperature (98.6 F; 37 oC). Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a b с d 31% faster 11% faster 24% faster 259% faster Your answer

Hello, Can you please help me with the problem attached?

Draw a dashed line to show the effect of adding a catalyst to the system which decreases E A by 20 kJ.

Referring to this reaction coordinate diagram, what is the free energy of activation for the reaction B → A? E В C reaction coordinate O C O D O B O E O A free energy

Predict the effects with the ff. changes by writing: A = for forward reaction B = for backward reaction C = for no shift   2Cl2(g) + 7O2(g) ↔ 2Cl2O7(g) ∆H = - 86.5 Kcal T = 400ºC P = 1 atm   Question: Addition of H2to absorb O2

ki ki = 2x 102s B, rate constant of forward reaction k-1 9. For the reversible reaction A and for back reaction k.j = 1x 103 s1.What is equilibrium constant for this reaction?