解æï¼
溶度积常æ°Ksp
Kspï¼AgIï¼ = cï¼<Ag>+ï¼Ã cï¼<I>-ï¼
Kspï¼Ag2SO4ï¼ = [ cï¼<Ag>+ï¼]^2 Ã cï¼<SO4>2-ï¼
åªè¦æ»¡è¶³æ¤å
³ç³»å¼å°±è½å½¢ææ²æ·ï¼ä¸è®ºæ²æ·çKsp大å°ã
室温ä¸ï¼é常为298Kï¼ï¼
Kspï¼AgIï¼ = 8.3 Ã 10^ï¼-17ï¼
Kspï¼Ag2SO4ï¼ = 1.4 Ã 10^ï¼-5ï¼
饱å溶液ä¸ï¼æ cï¼<Ag>+ï¼= cï¼<I>-ï¼
å Kspï¼AgIï¼ = [ cï¼<Ag>+ï¼]^2
è Kspï¼Ag2SO4ï¼ = [ cï¼<Ag>+ï¼]^2 Ã cï¼<SO4>2-ï¼
æ以cï¼<SO4>2-ï¼= Kspï¼Ag2SO4ï¼/ Kspï¼AgIï¼
= 1.4 Ã 10^ï¼-5ï¼/ 8.3 Ã 10^ï¼-17ï¼
= 1.686746987952 Ã 10^ï¼11ï¼ mol/L
ç±æ¤è®¡ç®åºçcï¼<SO4>2-ï¼æ¯è¾¾å°æ²æ·æ¶çç¨éï¼æ以 ä¸å¯è½å½¢æAg2SO4æ²æ·
ä¹å°±æ¯è¯´ AgI å¯ä»¥æº¶è§£ äº Na2SO4 溶液ä¸ï¼ç¸å
³æ¹ç¨å¼ä¸ºï¼
Na2SO4 + 2AgI ââ Ag2SO4 + 2NaI
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