Chemistry102 5/7/2013 Lecture Presentation Chapter 17 Additional Aspects of Aqueous Equilibria John D. Bookstaver St. Charles Community College Cottleville‚ MO © 2012 Pearson Education‚ Inc. Common Ion Effect HA(aq) + H2O(l) ⇔ A−(aq) + H3O+(aq) • Adding a salt containing the anion NaA‚ which • is the conjugate base of the acid (the common ion)‚ shifts the position of equilibrium to the left This causes the pH to be higher than the pH of the acid solution 9lowering the H3O+ ion concentration
Free PH Acid dissociation constant Buffer solution
Princess Diaries Script [Sirens] HELEN/ Time for school! Stop daydreaming. You’ll be late for school. MIA: Sometimes l have dreams‚ l picture myself flyin’ Through the clouds High in the sky‚ Conquering the world With my magic piano‚ Never being scared; But then l realize l’m Supergirl And l’m here to save the world But l wanna know‚ Who’s gonna save me? [She goes with her mother to take breakfast] HELEN/ Are you feeling confident? MIA: Not reaIIy. HELEN: Now just remember‚when
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Artist: Arcade Fire Album: Funeral 1. Neighborhood #1 (Tunnels) 2. Neighborhood #2 (Laika) 3. Une Année Sans Lumière 4. Neighborhood #3 (Power Out) 5. Neighborhood #4 (7 Kettles) 6. Crown of Love 7. Wake Up 8. Haiti 9. Rebellion (Lies) 10.In the Backseat ============================ 1. Neighborhood #1 (Tunnels) ============================ Riff: F e|------------------------------------------------| B|------------------------------------------------| G|------------------------------------5-----------|
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wind hadn’t distorted my words enough‚ my quills stabbed the sound waves as they were wiggling out of vocal cords. The only response I received was another mouth full of quills. Oh why thank you‚ wind. Regardless of the interruptions‚ Sonic should’ve been able to hear me. Then I realized: Oh-no‚ what if he’s injured? Oh Eggman‚ you better pray I find Sonic again – and he better not have a scratch on him‚ or else! Calm down‚ Amy. Calm down. Focus. I forced myself to stop hyperventilating. My hero
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NaHCO3 Fe(NO3)3 NaNO3 Na3PO4 HCl MgSO4 KOH HNO3 Na2SO4 NaHPO4 CuSO4 NaNO2 CoCl2 Al(NO3)3 NiCl2 H2SO4 KCl NH4Cl 12. CuSO4 CuCO3.Cu(OH)2(s) + 2 H2SO4(aq) ----> 2 CuSO4(aq) + CO2(g) + 3 H2O(l) Na3PO4 Na3PO4 (aq) + 3H2O (l) --> H3PO4 (aq) + 3NaOH (aq) 13. Arrhenius definition says that a base yields the hydroxide ion (OH-) in an aqueous solution. Arrhenius definition is dependent on substances in aqueous solutions. On the other hand‚ a Bronsted-Lowry base is one that accepts
Free PH Acid dissociation constant Acid
Pimpernel himself! Imagine that? The man whom we all believed‚ even me his wife‚ to be a simpleton‚ a mere charming fool incapable of nothing more than inhaling his snuff in fact is a hero of the people. I feel in torment now‚ and I fear for his life! Oh‚ why was I so stupid to agree with Chauvelin’s demands? Please God‚ tell me why! I remember my last conversation with my dear husband. It felt so strangely awkward. His plans of sailing to France confused me‚ and while he talked‚ I did not listen
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If the temperature is higher‚ then the reaction rate will be faster. Materials: The materials differ depending on what effect is being demonstrated. For the effect of enzyme concentration on the enzyme‚ the materials used include: catalase (OH 3% and OH 1.0%)‚ forceps‚ filter paper discs‚ water‚ ice‚ vials‚ water baths‚ marking pencils‚ and a timer. Data: The data being collected will be what type of effect does enzyme concentration‚ substrate concentration‚ pH‚ and temperature have on enzyme
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performed‚ there were no OH stretches‚ meaning that the OH- was replaced successfully by the Br-‚ and the water was separated out. The weight of our t-Pentyl Chloride sample was 0.20g. The percent yield was calculated to be 4.17%. The theoretical yield is 0.959g. The boiling point of the sample was determined to be 88° C‚ which is higher than the literature value of 86° C. Again‚ impurities are the reason for this‚ as they can increase boiling point. There were no OH stretches on the IR spectroscopy
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solutions would be. Justify the hypothesis from a chemical standpoint. a. Aqueous Sodium Hydroxide—NaOH (aq) is a very strong base‚ which will completely disassociate into Na+ and OH- ions‚ which would make it a very strong electrolyte. Chemical reaction of the disassociation of Sodium Hydroxide: NaOH (aq)Na+ (aq)+ OH-(aq) b. Aqueous NaCl—Sodium Chloride contains both sodium and chloride ions‚ but in the solid state they are locked in place and therefore unavailable to conduct electricity. But
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following contain the element phosphorus? A. B. C. D. Amino acids Viruses Ribose Deoxyribose 8808-6004 Turn over –4– 7. Which diagram correctly illustrates a glucose molecule? A. H C OH CHOH C H OH C H C. H N H C H N08/4/BIOLO/SPM/ENG/TZ0/XX+ B. O H C OH O C H N H C H C OH CHOH C H H C OH O
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