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Gaokao Chemistry Practice Question

3. (6 分) $\mathrm{N}_{\mathrm{A}}$ 为阿伏加德罗常数的值。下列叙述正确的是()

  1. A.$1.0 \mathrm{~L} 1.0 \mathrm{~mol} \cdot \mathrm{L}^{-1}$ 的 $\mathrm{NaAlO}_{2}$ 水溶液中含有的氧原子数为 $2 \mathrm{~N}_{\mathrm{A}} \square$
  2. B.$12 \mathrm{~g}$ 石墨烯(单层石墨)中含有六元环的个数为 $0.5 \mathrm{~N}_{\mathrm{A}} \square$
  3. C.$25^{\circ} \mathrm{C}$ 时 $\mathrm{pH}=13$ 的 $\mathrm{NaOH}$ 溶液中含有 $\mathrm{OH}^{-}$的数目为 $0.1 \mathrm{~N}_{\mathrm{A}} \square$
  4. D.$1 \mathrm{~mol}$ 的羟基与 $1 \mathrm{~mol}$ 的氢氧根离子所含电子数均为 $9 \mathrm{~N}_{\mathrm{A}} \square$

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