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Macmillan Learning Complete the Ksp expression for Ag₂CO3. Ksp = 8.46 × 10-12 = MacBook Pro Search or type URL

How does the chemical inertness of CCl2F2 (Freon-12) relate to the usefulness and theproblems associated with this compound?

> Recitation Groups 2- Bb Clicker Student >CHEM 120 Recitation-B X G what does com/#/courses/f6a0eb3e-1b08-4659-b1fa-c41d6db62792/assignments/e5af6f1a-129e-46e4-8a24-01214d81b6a9 Eae ntiala of Ongane Chemitry Rtaton s CHEM 12 3, [Multiple Cholce] Choose an alcohol best sultableforthis reaction OH HO A. HO OH C. OH В. D. hp 近

Given the following data 2 CIF(g) + O2(9) — Сlp O(9) + F,O(9) 2 CIF3 (9) + 202(9) —> Clz O(9) + ЗF20(9) 2F2 (g) + O2 (9) → 2F20(g) AH= 167.4 kJ AH=341.4 kJ AH=-43.4 kJ calculate AH for the reaction CIF(g) + F2 (g) → CIF3 (g) ΔΗ= kJ Submit Answer Try Another Version 1 item attempt remaining

Complete the sentence to make it true. The single most important contribution to the stability of a water soluble globular protein's conformation appears to be the sum of free energies of formation of many weak interactions among the hundreds of amino acids in a protein. entropy increase from the decrease in the number of ordered water molecules forming a solvent shell around the unfolded protein. sum of free energies of formation of many weak interactions between a protein's polar amino acids and surrounding water. maximum enthalpy increase from ionic interactions between the ionized amino acids in a protein. stabilizing effect of hydrogen bonding in a protein between the carbonyl group of one peptide bond and the amino group of another

P17B.7 Pharmacokinetics is the study of the rates of absorption and elimination of drugs by organisms. In most cases, elimination is slower than absorption and is a more important determinant of availability of a drug for binding to its target. A drug can be eliminated by many mechanisms, such as metabolism in the liver, intestine, or kidney followed by excretion of breakdown products through urine or faeces. As an example of pharmacokinetic analysis, consider the elimination of beta adrenergic blocking agents (beta blockers), which are used in the treatment of hypertension. After intravenous administration of a beta blocker, the blood plasma of a patient was analysed for remaining drug and the data are shown below, where c is the drug concentration measured at a time t after the injection. t/min 30 60 120 150 240 360 480 c/(ng cm) 152 699 622 413 292 60 24 (a) Is the decay of the concentration of the drug first- or second-order in the drug? (b) Calculate the rate constant and…

Selective serotonin reuptake inhibitors (SSRIs) are commonly prescribed antidepressants. SSRIs block the reabsorption of the neurotransmitter serotonin in the brain. Changing the balance of serotonin helps brain cells send and receive chemical messages, which in turn boosts mood. Two SSRI medications are Faverin (fluvoxamine, C15H21F3N2O2 ) and Zoloft (sertraline, C17H17Cl2N ). Determine the molar masses of Faverin and Zoloft

11c

Match the following amino acids with their chemical properties H -N-CIC- A -A ✓ B но с D VE ✓ F ✓ G / CH3 CH3 CH B H но -N-C-C- feed C но -N-C-C- H CH₂ D HO -N-CIC- 1 H CH₂ OH E но ||| -N-C-C- II H CH₂ I CH₂ CH₂ CH₂ T NH3 I. Acidic II. Nonpolar III. Polar uncharged IV, Basic + F O HO -N-C-C- H CH₂ NH₂ G но | || -N-C-C- I H CH₂ 1

Type 3. If Rc = 0.145 for A₂ + 2B = 2AB (9) (9) Ка = ㅗ 4AB 2A2+4B (g) Kc₂= Ког [AB]² [A₂][B] = 0.145 [A₂]²[B]* [AB]+ دو) ㅗ 1 = (k~₁) ² ког к сч=? =[AB]² ([AB]² 12 [A₂][B]² [[A₂][B] ² =47,56 Kc2 = (Kc₁) ² (0.145) = ☆ What is Kc3 = ? — Az (g) + B (g) = AB (g)

Element: Mercury

Order the following types of bonding from strongest (=1) to weakest (=5) in a typical biochemical system. lonic interactions. Hydrogen bonds. London dispersion interactions. Dipole interactions. Covalent bonds.

What does DNFB look like in acid, then in base? Which one would be water soluble?

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help fill out this sheet based on structure

Estimate the Keq for the acid/base equilibria below using pKa Values. (Not provided so I have been looking in my text book and online and not getting anywhere..)

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PHOTOSYNTHETIC PIGMENTS 1.6 0.7 1.4 Qy CH 0.6 1.2 Soret 0.5 1 H 0.4 0.8 0.3 COOCH 0.6 phytyl bacteriochlorophyll a 0.2 0.4 Qx 0.1 0.2 300 400 500 600 700 800 700 750 800 850 900 2 (nm) 2 (nm) Figure 4.7 Absorption (left) and fluorescence (right) spectra of bacteriochlorophyll a in diethyl ether 5. Look at this figure from Blankenship's book, Molecular Mechanisms of Photosynthesis. You can see the structure for bacteriochlorophyll a, along with its absorption spectrum. a. What is the molecular shape around the labeled carbon atom? b. What is the hybridization around that same carbon? c. Based on this structure, would you expect this molecule to absorb light in the visible spectrum? Why or why not? Absorbance Fluorescence (Arbitrary units)

If a particular 150 amino acid polypeptide is known to sample 4 preferred states as it folds into its native protein conformation, and if 10¹5 conformations can be sampled per second, then how many hours would it take for this protein to fold according to Leventhal? 8 × 10107 07 x 10⁹⁰ 4 x 1023 6 x 10¹7