5•下列哪一個緩衝溶液的緩衝能力(抵抗強酸,強鹼或稀釋的能力)最大?(A) 1 M H2CO3 和 1 M NaHCO3 等體積混合(M = mol/L)(B)0.5 M H2CO3和1 M NaHC
24•分離HgS與CuS沉澱可用稀硝酸將CuS溶解(3S2— + 2NO3— + 8H+→3S + 2NO + 4H2O),請問CuS 發生何種反應? (A)沉澱反應 (B)氧化還原反應(C)錯合物反
29•以AgNO3溶液滴定Nal溶液形成Agl沉澱(Ksp = 8.3 x 10 -17),則其當量點的Ag+離子濃度爲何?(A)7.2x 10 -9M(B)8.3x 10-9M(C)9.1 x 10
30•以Ag+離子滴定Cl-及I-混合離子,請問AgCl(Ksp = 1.8x10-10)與AgI(Ksp = 8.3 x 10-17)何者會先沉澱?(A)同時沉澱(B)均不會沉澱(C)C1-離子(D
33.分析SO42-離子可以過剩Ba2+離子形成BaSO4沉澱,沉減過濾後以過剩EDTA加入煮沸形成 Ba(EDTA)2-離子,再以Mg2+離子滴定過剩的EDTA爲何種滴定?(A)問接滴定(B)取代滴
1. For gravimetric analysis and argentometric titration, which of the following statements arecorrec
2. For ionic strength and activity coefficients, which of the following statements are correct?(1) F
3. Kjeldahl nitrogen analysis is one of the most widely used methods for the determination ofnitroge
6. For solid-phase microextraction (SPME), which of the following parameters could not beconcerned?(
7. For the van Deemter equation and band broadening terms, which of the followingstatements are corr
8. Chromatograms of compounds A and B were obtained at the same flow rate with twocolumns of equal l