13. How many milliliters of 18.2M H_2SO_4 are needed to prepare 600.0~mL of 0.10M H_2SO_4 ? (A) 0.30mL (B) 109mL (C) 3.3mL (D) 1.6mL

19. For the equilibrium that exists in an aqueous solution of nitrous acid $(\mathrm{HNO}_2$ , a weak acid), the equilibrium constant expression is: (A) $K = \frac{[\mathrm{H}^{+}][\mathrm{NO}_{2}^{-}]}{[\mathrm{HNO}_{2}]}$ (B) $K = \frac{[\mathrm{H}^{+}][\mathrm{N}^{2+}][\mathrm{O}^{2-}]^2}{[\mathrm{HNO}_2]}$ (C) $K = [\mathrm{H}^{+}]\mathrm{[NO}_{2}^{-}]$ (D) $K = \frac{[\mathrm{H}^{+}]^{2}[\mathrm{NO}_{2}^{-}]}{[\mathrm{HNO}_{2}]}$

13. How many milliliters of $18.2\mathrm{M}$ $\mathrm{H}_2\mathrm{SO}_4$ are needed to prepare $600.0~\mathrm{mL}$ of $0.10\mathrm{M}$ $\mathrm{H}_2\mathrm{SO}_4$ ?
(A) $0.30\mathrm{mL}$
(B) $109\mathrm{mL}$
(C) $3.3\mathrm{mL}$
(D) $1.6\mathrm{mL}$

相關試題

相關試卷

13. How many milliliters of $18.2\mathrm{M}$ $\mathrm{H}_2\mathrm{SO}_4$ are needed to prepare $600.0~\mathrm{mL}$ of $0.10\mathrm{M}$ $\mathrm{H}_2\mathrm{SO}_4$ ?(A) $0.30\mathrm{mL}$(B) $109\mathrm{mL}$(C) $3.3\mathrm{mL}$(D) $1.6\mathrm{mL}$

相關試題

相關試卷

13. How many milliliters of $18.2\mathrm{M}$ $\mathrm{H}_2\mathrm{SO}_4$ are needed to prepare $600.0~\mathrm{mL}$ of $0.10\mathrm{M}$ $\mathrm{H}_2\mathrm{SO}_4$ ?
(A) $0.30\mathrm{mL}$
(B) $109\mathrm{mL}$
(C) $3.3\mathrm{mL}$
(D) $1.6\mathrm{mL}$