Qhov sib txawv tseem ceeb ntawm sodium chloride thiab potassium chloride yog qhov sib txawv ntawm electronegativity ntawm K thiab Cl siab dua li Na thiab Cl.
Sodium chloride thiab potassium chloride yog ionic compounds. Ob leeg yog cov khib nyiab, thiab lawv cov cations thiab anions yog nyob rau hauv ib tug zoo packed qauv. Cov no yog pawg 1 hlau, uas muaj peev xwm ua +1 cations. Chloride yog -1 anion ua los ntawm pawg 7, chlorine. Txij li thaum pawg 1 cov ntsiab lus yog electropositive thiab pawg xya lub ntsiab yog electronegative; lawv electronegativity sib txawv yog loj. Yog li ntawd, lawv tsim ionic bonds. Potassium yog electropositive ntau dua sodium, yog li qhov sib txawv electronegativity ntawm K thiab Cl yog siab dua li ntawm Na thiab Cl.
Sodium Chloride yog dab tsi?
Sodium chloride, lossis ntsev, yog xim dawb siv lead ua nrog cov mis molecular NaCl. Nws yog ib qho ionic compound. Sodium yog ib pawg 1 hlau thiab tsim ib qho +1 them cation. Tsis tas li ntawd, nws txoj kev teeb tsa hluav taws xob yog 1s2 2s2 2p6 3s1Nws tuaj yeem tso tawm ib qho hluav taws xob, uas yog nyob rau hauv 3s suborbital thiab tsim ib +1 cation.
Electronegativity ntawm sodium yog tsawg heev, tso cai rau nws tsim cations los ntawm pub ib tug electron rau ib tug siab dua electronegative atom (xws li halogens). Yog li ntawd, sodium feem ntau ua ionic compounds. Chlorine yog ib qho nonmetal thiab muaj peev xwm tsim tau ib qho -1 them anion. Nws txoj kev teeb tsa hluav taws xob yog 1 s 22 s 2 2 p 6 3s 2 3p 5 Txij li thaum p sublevel yuav tsum muaj 6 electrons kom tau txais Argon noble gas electron configuration, chlorine muaj peev xwm nyiam ib qho hluav taws xob. Nrog rau electrostatic attraction ntawm Na+ cation thiab Cl– anion, NaCl tau txais cov qauv lattice.
Daim duab 01: Rooj S alt
Nyob rau hauv cov siv lead ua, rau chloride ions ncig txhua lub sodium ion, thiab txhua chloride ion yog ib puag ncig los ntawm rau sodium ions. Vim yog tag nrho cov kev nyiam ntawm ions, cov qauv siv lead ua ruaj khov dua. Tus naj npawb ntawm ions tam sim no nyob rau hauv sodium chloride crystal nws txawv nrog qhov loj ntawm nws. Ntxiv mus, qhov sib xyaw no yooj yim soluble hauv dej thiab ua rau cov kua ntsev.
Aqueous sodium chloride thiab molten sodium chloride tuaj yeem ua hluav taws xob vim muaj cov ions. Kev tsim cov NaCl feem ntau yog los ntawm cov dej hiav txwv evaporating. Ntxiv mus, peb tuaj yeem tsim cov tshuaj no los ntawm kev siv tshuaj, xws li ntxiv HCl rau hauv cov hlau sodium. Cov no muaj txiaj ntsig zoo li zaub mov preservatives, hauv kev npaj zaub mov, ua tus neeg saib xyuas, rau kev kho mob, thiab lwm yam.
Potassium Chloride yog dab tsi?
Potassium chloride, lossis KCl, yog cov khoom ionic. Nws yog nyob rau hauv daim ntawv ntawm cov xim dawb. Nws lub melting point yog hais txog 770 ° C, thiab lub boiling point yog 1420 ° C. Potassium chloride yog qhov tseem ceeb hauv kev ua chiv vim cov nroj tsuag xav tau cov poov tshuaj rau lawv txoj kev loj hlob thiab kev loj hlob.
Daim duab 02: Potassium Chloride
KCl, ua ntsev, yog soluble hauv dej heev. Yog li ntawd, nws yooj yim tso cov poov tshuaj rau hauv av dej kom cov nroj tsuag tuaj yeem nqa cov poov tshuaj yooj yim. Qhov no kuj tseem siv tau rau hauv tshuaj thiab ua zaub mov. Tsis tas li ntawd, potassium chloride yog qhov tseem ceeb hauv kev ua cov poov tshuaj hydroxide thiab potassium hlau.
Qhov txawv ntawm Sodium Chloride thiab Potassium Chloride yog dab tsi?
Sodium chloride lossis ntsev yog xim dawb siv lead ua nrog cov mis molecular NaCl. Ntawm qhov tod tes, potassium chloride lossis KCl yog cov khoom ionic. Qhov sib txawv tseem ceeb ntawm sodium chloride thiab potassium chloride yog qhov sib txawv ntawm electronegativity ntawm K thiab Cl yog siab dua li ntawm Na thiab Cl. Molar loj ntawm KCl yog siab dua li ntawm NaCl '; Cov molar loj ntawm sodium chloride yog 58.44 g / mol, thiab rau poov tshuaj chloride yog 74.55 g / mol. Tsis tas li ntawd xwb, cov neeg uas tsis xav noj Na tuaj yeem muaj KCl ntsev, tsis yog NaCl cov lus ntsev.
Summary – Sodium Chloride vs Potassium Chloride
Potassium chloride yog KCl thiab sodium chloride yog NaCl. Potassium yog electropositive ntau dua sodium, yog li qhov sib txawv electronegativity ntawm K thiab Cl yog siab dua li ntawm Na thiab Cl.
