2.40 As we will see in later chapters, many steps in key reaction sequences involve acid-base reactions. (a) Draw curved arrows to llustrate the flow of electrons in steps [1]-[3]. (b) Identify the base and its conjugate acid in step [1]. (c) Identify the acid and its conjugate base in step [3]. HÖ: :ÖH нӧ: :ӧн :ÖH : ö: + H3o: + Hzö: + H30: 1 2 H,ö:

For the Brønsted acid-base reaction shown in the image, determine the conjugate acid-base pairs, then give the curved-arrow notation for the reaction in the left-to-right direction. l'om A + B is an acid and - (b) Add curved arrows to species A + B. (a) Complete the statements to indicate the conjugate acid-base pairs. It does not matter which pair is listed first. Species is an acid and is its conjugate base. Species is its conjugate base. LA H H :0 H 1 H H D

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In acid base reactions: stronger acid + stronger base --> weaker acid + weaker base Given this reaction: H2O + H2O <--> H3O+ + –OH  Predict whether it: goes to the left, towards reactants or goes to the right, towards products Please explain your choice.

Identify the pair of species that is not a conjugate acid-base pair. O NH†; NH, O H,PO3; H,PO, H, SO;; sơ;- O HBr; Br¯

12. a) Show the dissociation (ionization) of the following acids in water HCI HF was your one faorite and one least favorite pan of the do?(3 points) b) Identify the Bronsted acid, Bronsted base, conjugate acid, and conjugate base in each reaction in part A. gaibroooA (a wsoald cheone thing ice H. ug pace bangnoe OFH TO send to bios s 2e 0 li gninesm

Connections to biology 6. Circle the most acidic proton in each of the following biologically active molecules. (a) OH OH salicylic acid used to treat skin disorders (b) OH warfarin anticoagulant

Draw the most likely conjugate base resulting from this acid-base reaction. Include all lone pairs. Ignore inorganic byproducts. :O: :0: NaOEt Drawin Q

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1) Complete the following reactions and identify the acid, base, conjugate acid and conjugate base. CH;CH,NH2 (aq) + H2O (1) a) CH;COOH (aq) + H,O (I) b) c) Identify the conjugate base and conjugate acid of each of the following. Conjugate Base Molecule Conjugate Acid HCO3 H20 HSO4- H2PO4