【单选题】符号Kb(HS-)是下列哪个反应的质子转移平衡常数？
A. HS- + OH- = S2- + H2O
B. HS- +H2O = S2- +H3O+
C. HS- + H2O = H2S + OH-
D. HS- + H3O+ = H2S + H2O
A. HS- + OH- = S2- + H2O
B. HS- +H2O = S2- +H3O+
C. HS- + H2O = H2S + OH-
D. HS- + H3O+ = H2S + H2O
举一反三
- 9 . HS - + H 2 O H 2 S + OH - ， 反应 物 中酸和碱分别是 A.H 2 S 和 OH - B. H 2 S 和 HS - C. H 2 O 和 HS - D. H 2 S 和 H 2 O
- 符号Kb(HS-)是下列哪个反应的质子转移平衡常数？ A: HS- + OH- = S2- + H2O B: HS- +H2O = S2- +H3O+ C: HS- + H2O = H2S + OH- D: HS- + H3O+ = H2S + H2O
- Na2S 溶液的质子条件式为 A: c(H+ )+ c(HS- ) + 2 c(H2S) = c(OH- ) B: c(H+ )+c(Na+ ) = c(HS - )+2 c(S2- ) + c(OH- ) C: c(H+ )+ c(H2S) = c(HS - ) +2 c(S2- )+ c(OH- ) D: c(H+ )+ c(HS- ) + c(H2 S) = c(OH- )
- H3O+、H2S的共轭碱分别是 A: OH-,S2- B: H2O,HS- C: H2O,S2- D: OH-,,HS-
- H3O+、H2S的共轭碱分别是 A: OH-,S2- B: H2O,HS- C: H2O,S2- D: OH-,,HS-