A、pH=10.0,[NH<sub>3sub>]=0.02mol/L B、pH=10.0,[NH<sub>3sub>]=0.05mol/L C、pH=10.0,[NH<sub>3sub>]=0.1mol/L D、pH=10.0,[NH<sub>3sub>]=0.2mol/L
A、pH=10.0,[NH<sub>3sub>]=0.02mol/L B、pH=10.0,[NH<sub>3sub>]=0.05mol/L C、pH=10.0,[NH<sub>3sub>]=0.1mol/L D、pH=10.0,[NH<sub>3sub>]=0.2mol/L
A、pH=9.0,[NH<sub>3sub>]=0.01mol/L B、pH=10.0,[NH<sub>3sub>]=0.01mol/L C、pH=9.0,[NH<sub>3sub>]=0.05mol/L D、pH=10.0,[NH<sub>3sub>]=0.15mol/L
A、酸洗电解槽的残酸 B、Na<sub>2sub>CO<sub>3sub> C、浓H<sub>2sub>SO<sub>4sub> D、稀H<sub>2sub>SO<sub>4sub>
A、BaSO<sub>4sub> (1.1×10-10) B、CaSO<sub>4sub>(9.1×10-6) C、PbSO<sub>4sub> (1.6×10-8) D、Ag<sub>2sub>SO<sub>4sub> (1.4×10-5)
A、Fe<sub>2sub>(SO<sub>4sub>)<sub>3sub> B、CuSO<sub>4sub> C、Na<sub>2sub>SO<sub>4sub> D、Na<sub>2sub>S