Math  /  Data & Statistics

QuestionBEST Completer the statement or anwers the quetion. following reaction will Ke=KpK_{e}=K_{p} ? B) H2( g)+Br2( g( g)CO(g)+3H2( g)\mathrm{H}_{2(\mathrm{~g})}+\mathrm{Br}_{2}\left(\mathrm{~g}(\mathrm{~g}) \leftrightharpoons \mathrm{CO}(\mathrm{g})+3 \mathrm{H}_{2}(\mathrm{~g})\right. C) N2O4( g)2 g)2HBr(g)\left.\mathrm{N}_{2} \mathrm{O}_{4}(\mathrm{~g}) \leftrightharpoons 2 \mathrm{~g}\right) \leftrightharpoons 2 \mathrm{HBr}(\mathrm{g}) D) CO(g)+2NO2( g)\mathrm{CO}(\mathrm{g})+2 \mathrm{NO}_{2}(\mathrm{~g}) E) N2( g)+2H2( g)CH3OH(g)\mathrm{N}_{2}(\mathrm{~g})+2 \mathrm{H}_{2}(\mathrm{~g}) \leftrightharpoons \mathrm{CH}_{3} \mathrm{OH}(\mathrm{g})
7. Express the equilibrium constant for the following reaction. P4( g)+5O2( g)P4O10( s)\mathrm{P}_{4}(\mathrm{~g})+5 \mathrm{O}_{2}(\mathrm{~g}) \leftrightharpoons \mathrm{P}_{4} \mathrm{O}_{10}(\mathrm{~s}) A) K=[P4][O2]5[P4O10]K=\frac{\left[\mathrm{P}_{4}\right]\left[\mathrm{O}_{2}\right]^{5}}{\left[\mathrm{P}_{4} \mathrm{O}_{10}\right]} B) K=[P4O10][P4][O2]5K=\frac{\left[\mathrm{P}_{4} \mathrm{O}_{10}\right]}{\left[\mathrm{P}_{4}\right]\left[\mathrm{O}_{2}\right]^{5}} C) K=[O2]5K=\left[\mathrm{O}_{2}\right]^{5} D) K=[O2]5K=\left[\mathrm{O}_{2}\right]^{-5} E) K=[P4O10][P4][O2]1/5K=\frac{\left[\mathrm{P}_{4} \mathrm{O}_{10}\right]}{\left[\mathrm{P}_{4}\right]\left[\mathrm{O}_{2}\right]^{1 / 5}}
8. A solution is prepared by dissolving 0.23 mol of benzoic acid and 0.27 mol of potassium benzoate in sufficient water to yield 1.00 L of solution. The addition of 0.05 mol of HCl to this buffer soltation causes the pH to decrease only slighly. The pH does not decrease drastically because the HCl reacts with the \qquad present in the buffer solution. A) H2O\mathrm{H}_{2} \mathrm{O} B) H3O+\mathrm{H}_{3} \mathrm{O}^{+} O) porassium ion D) benzoic acíd E) benzoate ion
9. A 50.0 mL sample of an aqueous H2SO4\mathrm{H}_{2} \mathrm{SO}_{4} solution is titrated with a 0.375 M NaOH solution. The equivalence point is reached upon addition of 125.1 mL of the base. The concentration of H2SO4\mathrm{H}_{2} \mathrm{SO}_{4} is \qquad MM. A) 0.234 B) 0.469 C) 0.150 D) 0.300 E) 0.938 Page 2 of 6

Studdy Solution
The answers are: C, D, E, and B.

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