2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
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.
Pom zoo:
Puas yog cov dab dab dab dab dab dab dab dab dab dab dab dab?
Myth: Ib tug dab tshos tsis yog neeg ncaj ncees yog tiasnws haum yog. Fact: Tu siab, qhov no yog ib lo lus tsis tseeb uas tau raug perpetuated los ntawm aversive trainers. Txawm hais tias haum rau lub caj dab kom zoo khawb rau hauv cov tawv nqaij rhiab nyob ib ncig ntawm lub caj dab, uas ua rau muaj kev puas tsuaj loj rau cov thyroid, esophagus, thiab trachea.
Cov piv txwv ntawm cov kuab tshuaj thiab cov kuab tshuaj yog dab tsi?
Solutes yog cov khoom uas yaj rau hauv cov kuab tshuaj thiab peb xaus nrog kev daws. Qee qhov piv txwv ntawm cov kuab tshuaj yog dej, ethanol, toluene, chloroform, acetone, mis nyuj, thiab lwm yam. Piv txwv ntawm cov kuab tshuaj muaj xws li, qab zib, ntsev, oxygen, thiab lwm yam … Cov dej dej muaj dej (kua kua) thiab yaj oxygen (solute).
Dab tsi yog cov khoom lag luam thaum cov tshuaj reactants yog cawv thiab thionyl chloride?
Yog tias koj haus cawv thiab ntxiv thionyl chloride, nws yuav hloov mus rau hauv alkyl chloride. Cov byproducts ntawm no yog hydrochloric acid (HCl) thiab sulfur dioxide (SO2). Cov tshuaj tiv thaiv ntawm thionyl chloride ntawm cawv yog dab tsi?
Thaum twg mercuric iodide ntxiv rau cov tshuaj aqueous?
Thaum mercuric iodide ntxiv rau cov tshuaj aqueous ntawm KI, qhov chaw khov yog nce. Yog li, cov lus teb raug yog "Option A". Thaum twg mercuric iodide ntxiv rau cov tshuaj aqueous ntawm KI lub khov taw tes yog tsa vim li cas?
Cov tshuaj twg yog cov tshuaj uas tsis yog tshuaj tiv thaiv inflammatory analgesic?
Txhua yam koj yuav tsum paub txog NSAIDs. Nonsteroidal anti-inflammatory tshuaj (NSAIDs) yog cov tshuaj uas txo qis lossis txo qhov mob. Cov piv txwv nrov tshaj plaws ntawm cov tshuaj hauv pawg no yog aspirin thiab ibuprofen. NSAIDs tuaj nyob rau hauv lub ntsiab lus dav ntawm non-opioid analgesics.
