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Aqueous solutions of phosphoric acid and sodium nitrite are combined, and the following equilibrium is established. H3PO4 (aq) + NO2- (aq) = H2PO4-(aq) + HNO2 (aq)
The equilibrium constant Kc for this reaction is greater than one. Based on this information, which of the following statements is correct?
a. Phosphoric acid is a weaker acid than nitrous acid.
b. Nitrous acid is a weaker acid than water.
c. The nitrite anion is a wesker base than the dihydrogen phosphate anion.
e. Phosphoric acid is a stronger acid than nitrous acid.
For the acid-base titration combination of NaOH with 1.5 mol HCl, find the number of moles of NaOH that would be the chemically equivalent amount of HCl. Answer in units of mol.
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If 10.00 mL of 0.250 M NaOH solution is added to 100.00 mL of the above original buffer solution (described in part 1 of this problem), what is the new pH of the solution?
During a photochemical smog episode in a coastal city, the steady-state concentration of oxygen radicals at ground level was measured to be 0.09 ppmv at 25 degrees celsius.
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