298.15K,p(O[img=7x22]1803dd5ac2fb888.png[/img])=100kPa条件下,O[img=7x22]1803dd5acb70619.png[/img] + 4H[img=11x21]1803dd5ad35778d.png[/img] + 4e[img=11x21]1803dd5adb92f1a.png[/img] = 2H[img=7x22]1803dd5ae3ec5b3.png[/img]O的电极电势为( )。
A: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]+ 0.0592pH
B: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]- 0.0592pH
C: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]+ 0.0148pH
D: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]- 0.0148pH
A: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]+ 0.0592pH
B: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]- 0.0592pH
C: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]+ 0.0148pH
D: φ= φ[img=11x21]1803dd5aecba4ae.png[/img]- 0.0148pH
举一反三
- 在电极反应中,其他条件不变,离子的浓度减小一半,φ[img=11x21]1803dd564146d28.png[/img]值不变的是( )。 A: Cu[img=17x22]1803dd5649f13af.png[/img] + 2 e[img=11x21]1803dd565317d13.png[/img] = Cu B: I[img=7x22]1803dd565cb1434.png[/img] + 2 e[img=11x21]1803dd56658b4c0.png[/img] = 2I[img=11x21]1803dd566e62490.png[/img] C: 2H[img=11x21]1803dd56764d35d.png[/img] + 2 e[img=11x21]1803dd567e9d87e.png[/img] = H[img=7x22]1803dd5686ffa22.png[/img] D: Fe[img=17x22]1803dd568e4cd48.png[/img] + e[img=11x21]1803dd5697018a2.png[/img] = Fe[img=17x22]1803dd569fcffe9.png[/img]
- 下列已经配平的反应是( )。 A: Mn[img=17x22]1803dd59613bf64.png[/img]+5BiO[img=7x22]1803dd5969ee1c2.png[/img]+14H[img=11x21]1803dd5971e19d3.png[/img]→MnO[img=7x22]1803dd597ad1d0a.png[/img][img=11x21]1803dd59831425e.png[/img]+5Bi[img=17x22]1803dd598b7cbce.png[/img]+7H[img=7x22]1803dd5994d305b.png[/img]O B: 2CrO[img=7x22]1803dd599d4a3b7.png[/img][img=11x21]1803dd59a6535ca.png[/img]+3H[img=7x22]1803dd59adf3c07.png[/img]O[img=7x22]1803dd59b6a9b45.png[/img]+2OH[img=11x21]1803dd59beb8a66.png[/img]→2CrO[img=17x27]1803dd59c72713c.png[/img]+ 4H[img=7x22]1803dd59d0edd85.png[/img]O C: 8Al+3NO[img=11x26]1803dd59d9643c3.png[/img]+5OH[img=11x21]1803dd59e1850c8.png[/img]→3Al(OH)[img=11x26]1803dd59ea6acad.png[/img]+3NH[img=7x22]1803dd59f2b5caf.png[/img] D: S[img=17x22]1803dd59faee830.png[/img]+ClO[img=11x26]1803dd5a03bba6b.png[/img]→Cl[img=11x21]1803dd5a0db0f34.png[/img]+S
- 下列已经配平的反应是( )。 未知类型:{'options': ['Mn[img=17x22]17de8813f8a99d6.png[/img]+5BiO[img=7x22]17de88140515cce.png[/img]+14H[img=11x21]17de881411d6749.png[/img]→MnO[img=7x22]17de88141d629c7.png[/img][img=11x21]17de881428c2f19.png[/img]+5Bi[img=17x22]17de8814350c24d.png[/img]+7H[img=7x22]17de8814408757b.png[/img]O', '2CrO[img=7x22]17de88144d8f725.png[/img][img=11x21]17de88145955674.png[/img]+3H[img=7x22]17de88146611a7d.png[/img]O[img=7x22]17de88147332113.png[/img]+2OH[img=11x21]17de88147ec4eb7.png[/img]→2CrO[img=17x27]17de88148c527a4.png[/img]+ 4H[img=7x22]17de881497c0c9e.png[/img]O', '8Al+3NO[img=11x26]17de8814a343d49.png[/img]+5OH[img=11x21]17de8814b01fb80.png[/img]→3Al(OH)[img=11x26]17de8814bc229f9.png[/img]+3NH[img=7x22]17de8814c83c9f6.png[/img]', 'S[img=17x22]17de8814d452f89.png[/img]+ClO[img=11x26]17de8814e03b71b.png[/img]→Cl[img=11x21]17de8814ed8f502.png[/img]+S'], 'type': 102}
- 设[img=84x22]17e0ab7201ab5da.jpg[/img],且P{2<;X<;4}=0.1,不查表计算P{X<;0}=( ) A: 1/5 B: 2/5 C: 3/5 D: 4/5
- 设[img=84x22]17e43a3ff587368.jpg[/img],且P{2<;X<;4}=0.1,不查表计算P{X<;0}=( ) A: 1/5 B: 2/5 C: 3/5 D: 4/5