???????%20Titrimetry - PowerPoint PPT Presentation

Title: ???????%20Titrimetry


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???????Titrimetry
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????

• ?????????????
• ??????????????

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?1???????
????????50mL,??????,??????100mL,?NaOH??15m
L????????0.1g,?????????????(0.05mol/L),???????????
???
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?2???C?????
???????0.2g?????,?????????100mL????10mL???
,??????1mL,???0.1mol/L?????(???)??,????????30????
?
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????????
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??????
1????????????????????
2???(titration)???????????
??????,????
???????????
???????????
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3????(????,titrant) ??????????
4?????(titrand) ???????
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5?????????????????? 6?????????????????????? 7???
????????? ?????? 8????????????
???????
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????????
(?)?????????
1????(?????)
2??????(?????)
3??????(???)
4????????
???????????
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(?)???????

• ????????????????????
• ????(????)??????????????????(????),??????,???????
  ???????????????
• ?????????????
• ????????????????????,????????????????????????????
  

1?????? ????????
2?????? ???????????
3?????? ??????????
4??????????????Sn
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• ??????????????????????,????????????,?????????????
  ???????????(?????)??????
• ??Na2S2O3?K2Cr2O7???
• ??????????????????????,???????????,??????????????
  ?
• ??KMnO4??Ca2 ?

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?????(????)
1???
??????????
???????????
2???
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??????????
(?)?????? c n / V ??mol
/ L
(?)??? ----??????????????????? ???T???/???
??g/mL? mg/mL
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???????????????
T c M
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????????????
VT ????????
100
m
?? V--?????????(mL) T--???(g/mL)
m--????(g)?
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?3
????????????????????,??????0.4005g,
??????????????(0.1005mol/L)??, ????????????22.09mL
, ??????0.06mL????, ???1??????????(0.1mol/L)???18.
02mg??????, ????????????????
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?4
????Vc???(5mL500mg)2mL??????,??????????,?
??(0.1016mol/L)?????,?????22.24mL,
???1???????(0.1mol/L)???8.806mg?Vc, ???????Vc????
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???(????)???
1??????
????
2??????
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? ???????
1????????????(????)
2???
3??????????
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?5????????
????????0.16g?100mL???,??????,?????6mol/L?
???1mL,?????????,?????200mL????,???????,???
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? ????(??)
1.???? ?????????????
2.??(standardization) ?????????????????????????
????????
3.???????????(??????????????????),??????
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?6??????????????
??????????????5.6mL,?????????1000mL,???
????105?????????????????0.6g,????,???????50mL,?
?,??????????2?,?????????????????????
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????????
1????? ???????????????????????,?????????????????0
.951.05??
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2????????????????????????3?????3????????????????
??0.1?????????????????????0.1???????????????,?
4??????
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????(standard substance)
1???????
(1)????????? (2)?????????? (3)??
(4)?????????(???????)


2???????
KIO3? KHP(???????)?Na2CO3??
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