Teb: Thaum muaj kev daws ntawm poov tshuaj iodide ntxiv rau kev daws ntawm lead nitrate lead nitrate Lead(II) nitrate yog ib qho inorganic compound nrog cov tshuaj formula Pb(NO 3)2. Nws feem ntau tshwm sim raws li cov xim tsis muaj xim lossis cov hmoov dawb thiab, tsis zoo li feem ntau lwm cov hmoov lead (II) ntsev, yog soluble hauv dej. https://en.wikipedia.org › wiki › Lead(II)_nitrate
Lead(II) nitrate - Wikipedia
coj mus rau hauv lub raj ntsuas, nag lossis daus ntawm cov khoom daj tau pom. Cov khoom yellowish no yog lead iodide. Potassium nitrate yog tsim nrog txhuas iodide.
Dab tsi yog pom thaum cov tshuaj potassium iodide ntxiv rau cov tshuaj nitrate sau cov tshuaj sib npaug rau cov tshuaj tiv thaiv no?
(1) Thaum cov poov tshuaj iodide ntxiv rau hauv cov tshuaj aqueous ntawm cov hmoov lead nitrate ces cov xim daj xim av ntawm Lead iodide yog pom. (2) Cov tshuaj tiv thaiv no yog ob qhov kev hloov pauv. (3) 2KI + Pb(NO3)2 --- PbI2 + 2KNO3.
Koj yuav saib dab tsi thaum cov tshuaj potassium iodide ntxiv rau cov tshuaj lead nitrate hauv lub raj kuaj?
Hint: Potassium iodide (chemical formula-KI) tsis soluble hauv dej thaum Lead nitrate (chemical formula-Pb(NO3)2). Thaum ob leeg no react ua ke ib qho dawb precipitate compound yog tsim uas kuj insoluble nyob rau hauv dej.
Dab tsi yog pom thaum daws cov poov tshuajiodide ntxiv rau cov tshuaj silver nitrate?
Dab tsi yog pom thaum cov tshuaj potassium iodide ntxiv rau cov kua nitrate? Tsis muaj qhov tshwm sim tshwm sim. White precipitate ntawm silver iodide yog tsim. Yellow precipitate ntawm Agl yog tsim.
Yuav ua li cas thaum cov tshuaj poov tshuaj iodine?
Lead nitrate tov muaj cov khoom (hu ua ions) ntawm cov hlau lead, potassium iodide muaj cov khoom (hu ua ions) ntawm iodide. Thaum cov kev daws teeb meem sib xyaw, cov lead particles thiab iodide particles ua ke los tsim cov tshuaj tshiab, lead iodide, uas yog cov khoom daj.
