Most human enzymes function best in the temperature range of:
a.
b.
c.
d.
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- Some games include dice with more than six sides. If you roll two eight-sided dice, with faces numbered one through eight, what is the probability of rolling two eights? What is the most probable roll?arrow_forward7-43 (Chemical Connections 7A and 7B) Why is a high fever dangerous? Why is a low body temperature dangerous?arrow_forwardN2 and O2 are mixed in a flask and react (according to the equation below). Once the rxn achieved equilibrium [NO]eq = 1.8 mM, [O2]eq = 1.2 mM and [NO2]eq = 780 mM. What is the Kc value at this temperature? Identify whether the reaction is product favored or reactant favored at equilibrium. N2(g) + O2(g)⟷⟷ 2NO(g) A)Rxn is product favored at equilibrium B)Kc = 2.8 x 10-6 C)Rxn is reactant favored at equilibrium D)Kc = 3.6 x 105 E)Kc = 6.3 x 10-9 F)Kc = 1.6 x 108arrow_forward
- 7. The fermentation reaction of glucose is exothermic, producing 74k3 per mole of glucose. Calculate the change in energy in the fermentation of 50.00 lbs. of glucose. 2 2 CO2 C6H12O6 → C₂H5OH +arrow_forwardCatalysts are sometimes used in chemical reactions. a. Explain what a catalyst does in a chemical reaction b. How does a catalyst affect the ∆H of a chemical reaction c. How does a catalyst affect the reaction rate of a chemical reactionarrow_forward40L31-22SP / Week 8: Experiment 8- Designing Hot and Cold Packs/ Experiment Fill in the blank with the correct words: Energy is to break a bond and when a bond forms. required releasedarrow_forward
- 4. A chemist working for a drug company synthesizes four molecules that bind to the androgen receptor. You carry out a quantitative binding assay for each of these compounds using a purified androgen receptor preparation and determine the following K, values for the compounds: A. 1X 10°M В. 1X 10°М С. 2.5 X 10°М D. 1X 101°M Which of the compounds has the greatest affinity for the androgen receptor?arrow_forwardThe valence electrons are usually part of the reaction. These valence electrons become part of another substance or : 1°F Mostly sunny F1 Q ! 1 Ostay the same O revert back to the original reactant O burn out and get used up help to rearrange its original structure O F2 -ő- @ 2 W F3 0+ # 3 E F4 $ 4 R F5 % 5 F6 T ☆ A 6 F7 Y F8 & 7 + U F9 * 8 ***** 1 F10 20 ( 9 & O F11 O (2) ) 0 F12 P E Prt Sc { r + = Insert } Del Backspace I O 1 1:0. 10/7/2 * Home Sarrow_forwardConsider the following reaction: fructose-6-phosphate glucose-6-phosphate. At equilibrium, the concentrations are 300mM fructose-6-phosphate and 600mM glucose-6-phosphate. What is deltaG¹⁰ for the reaction? (Use the rounded number for the Gas constant: R=8 J/molk) a. -15936 J/mol b.-1652 J/mol O c. 1652 J/mol O d. 15936 J/molarrow_forward
- 2. Data for the reaction 2 HI (g) → H₂ (g) + I₂ (g) are given in the table below: Reaction temperature (K) 298 729 Chemical species H₂ (g) 1₂ (g) HI (g) Кс 1.26 x 10-3 2.0 x 10-2 AHof (kJ/mol) 0 62.442 25.9 a. Calculate AH (in kJ/mol) using the AH values given. Show your work, and pay attention to sig figs. b. Calculate AH (in kJ/mol) using the yan't Hoff equation. Show your work, and pay attention to sig figs.arrow_forwardWhich of the following Kc values represents a reaction that is most biased toward staying on the reactant side?a.124.9 b.0.606 c.8.08 d.0.074 e.32.3arrow_forwardJLK/m 23. Nitric oxide reacts with chlorine to form NOCI. 1. 2NO(g) + Cl2(g) → 2NOCI(g) Substance: NO(g) Cl2(g) AH° (kJ/mol) 0 90.29 at 298 K AG° (kJ/mol) 86.60 0 at 298 K S°(J/K • mol) 210.65 223.0 at 298 K What is AG°xn for this reaction at 550. K? A. -143.76 kJ/mol B. -78.78 kJ/mol C.-22.24 kJ/mol D.-10.6 kJ/mol E. 66600 kJ/mol NOCI(g) 51.71 66.07 261.60arrow_forward
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