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F(xin)ڵλã t(y)W(xu)ȫھ > ˎW(xu)Փ > ˎ > :ɢĜyк͵ζ

ţɢĜyк͵ζ

t(y)ˎ(sh)(j) ˎW(xu)Փ ɢĜyк͵ζ
Q
ɢţĜyк͵ζ
(yng)÷

õζyɢĺ

mţɢ

ԭ

ԇƷм(x)ˮܽÚcζҺ{(dio)(ji)pHֵ7.0ȻA(y){(dio)(ji)pHֵ9.0ȩҺÚcζҺζpHֵ9.0m(x)30ԼȩҺĵĚcζҺӋ(j)ĺ

ԇ

1. ȩ

2. cζҺ0.1mol/L)

3. ָ̪ʾҺ

4. (zhn)

xO(sh)䣺
ԇƂ䣺

1. cζҺ0.1mol/L)

ƣȡcmˮuʹܽҺsþϩƿoÔ(sh)áȡĚcҺ5.6mL·^ˮʹ1000mLu

(bio)ȡ105صĻ(zhn)⛼s0.6gܷQ·^ˮ50mLuʹMܽ⣬ӷָ̪ʾҺ2ñҺζڽӽKc(din)r(sh)(yng)ʹȫܽζҺ@ۼtɫÿ1mLcζҺ1mol/L)ஔ(dng)20.42mg(j)Һc⛵ȡҺĝȡ

AأþϩƿܷⱣ2׃(ni)벣1֧1ccʯB1ܹҺʹá

2. ָ̪ʾҺ

ȡ̪1gҴ100mLʹܽ⡣

E

ȡԇƷb(xing)µă(ni)Ͼ򣬾ܷQȡmsஔ(dng)0.2g)ˮ25mLÚcζҺ0.1mol/L){(dio)(ji)pHֵ7.0ȻA(y){(dio)(ji)pHֵ9.0ļȩҺ15mLuÚcζҺ0.1mol/L)ζpHֵ9.0m(x)30ԼȩҺĵĚcζҺ0.1mol/L)mL)Ӌ(j)ÿ1mLcζҺ0.1mol/L)ஔ(dng)12.51mgC2H7NO3S

עܷQȡϵָQȡ(yng)(zhn)_Qȡǧ֮һȡϵָȡweĜ(zhn)_ȑ(yng)χҘ(bio)(zhn)ЌԓweҺܵľҪ

īI(xin)

A񹲺͇ˎˎίT(hu)W(xu)I(y)2005һp.50

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