Which of the following is the conjugate base of the dihydrogen phosphate ion, H₂PO4? O PO4³- O H₂PO4 OH3PO4 O HPO4²- Which of the following statements is NOT correct? O HCIO is a stronger acid than HBrO O HPO42 is a weaker acid than H₂PO4 OHIO is a stronger acid than HCIO H₂SO4 is a stronger acid than H₂SO3 Predict the pK₁1 and pK₂2 value of H₂SO4 using the Pauling equation. O-6 and -1 -3 and 5 O2 and 5 O-2 and 3

애 A. HCl B H Br c souz D. POCI₂ -이

Please help identify A-G

Br CH3OH (f) CH3 CH3 CH3 KO'Bu (h) Br 'BuOH Br CI Bu KCN Ph KO'Bu 'BuOH CH3OH

Balance the following redox reactions, to their simplest form, by supplying the correct coefficients before each compound for #s 1-15. The unknown coefficients of the compounds should be whole numbers. Note: The reactions below are not yet balanced.

i) H .CO2H 150°C ? + H20 90% `CO2H Maleic acid ii) (CH;CO),0 + (CH3);C-OH ÇOOCH3 ii1) NaOH + OH- ? + CH3OH `NO2 CONH2 iv) Кон, Br H20, A 87% Br ÇH2-CEN v) H20 ,HCI 40°C vi) CH2=CH-c-OH CH2=CH- CH3CH,OH CI ÇOCI он vi) NaOH aqueous НА vii) CH,=CH-Ĉ-OCH3 + 1-Butanol 94%

1) The fizz produced when an Alka-Seltzer tablet is dissolved in water is due to the reaction between NaHC03 and citric acid CO2(8) + H,0(1) + Na3CgH;O;(aq) NaHCO;(aq) + H;C,H;O;(aq) a) In a certain experiment 1.00 g of NaHCO3 and 1.00 g of citric acid are allowed to react. Which is the limiting reactant? b) How many grams of sodium citrate (the last compound in the equation) form? c) How many grams of the excess reactant remain after the limiting reactant is completely consumed? d) If 0.723 g of sodium citrate was obtained in this reaction, then what is the percentage yield?

Hh.128.

Draw the strucfune of te ogemic major produet of te followring

assign the acid its appropriate pKa