6-Amaliy mashg’ulot Mavzu
Elektrolitik dissotsilanish
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6-amaliy
Elektrolitik dissotsilanish.
pH=-lg[H+]; pOH+pH =14 NaCl ↔ Na+ + Cl- KD - Dissotsilanish konstantasi; C - eritma konsentratsiyasi α-dissotsilanish darajasi. 1. Quyidagi asoslarning dissotsiyalanish reaksiya tenglamalarini yozing va eritma muhiti qanday? LiOH, KOH, NaOH, NH4OH, Ba(OH)2, Ca(OH)2, Sr(OH)2 2. Quyidagi amfoter gidroksidlarning dissotsilanish reaksiya tenglamarini yozing. Amfoterlik hossasini tushuntiring. Al(OH)3, Zn(OH)2, Be(OH)2, Fe(OH)3, Pb(OH)4 3. Quyidagi kislotalarning dissotsilanish reaksiya tenglamarini yozing. HCl, HNO3, HBrO3, HClO, HClO3, HClO4, HNO2, H2TeO4, H2SeO4, H3PO3, H2SO4, H2SO3, H3PO4 4. Quyidagi tuzlarning dissotsilanish reaksiya tenglamalarini yozing. Na2S2O3, Na2SO4, LiCl, KMnO4, MnSO4, CrCl3, KNO3, KCl, K2Cr2O7, Mg(NO2)2, NaCl, K3PO4, Fe2(SO4)3, FeCl2, AlCl3. 5. Quyidagi tuzlarning dissotsilanish reaksiya tenglamalarini yozing. Mg(HSO4)2, KHSe, CaOHNO3, AlOHSO4, Al(OH)2Cl, KHSO4, FeOHSO4, FeOHCl2, Fe(OH)2Cl, NaH2PO4, KHS, Ca(HCO3)2, MgHPO4, (CaOH)2SO4, KNaSO4, NaH2PO4, CaHPO4, CaOHCl, NaHSO4, LiHCO3, Ca(H2PO4)2, (CuOH)2CO3. 6. Elektrolitning har 150 ta molekulasidan 90 tasi ionlarga ajralgan bo’lsa, elektrolitning dissotsilanish darajasini aniqlang. J: 60 %. 7. Dissotsilanish darajasi 95 % ga teng bo’lgan elektrolitning 120 ta molekulasidan nechtasi dissotsilanadi? J: 114. 8. Sirka kislotaning (CH3COOH) 3 M li eritmasida vodorod ionlarining konsentratsiyasi 0,03 M bo’lsa, dissotsilanish darajasini aniqlang. J: 1 %. 9. Ma’lum hajmdagi kuchsiz bir negizli kislota eritmasida 6,02·1018 ta vodorod ionlari va 5,96·1020 ta kislota molekulalari bor. Shu kislotaning dissotsilanish darajasini aniqlang. J: 1,19 %. 10. Dissotsilanish darajasi 32 % ga teng bo’lgan 0,2 M li chumoli kislotaning (HCOOH) dissotsilanish konstontasini toping. J: 204,8. 11. Dissotsilanish konstontasi 2,8·10-8 bo’lgan gipoxlorit kislotaning 25 0C da 0,02 M li eritmasidagi HClO ning dissotsilanish darajasini aniqlang. J: 1,18·10-3 %. 12. Dissotsilanish konstontasi 5,0·10-8 bo’lgan HClO ning 25 0C da 0,03 M li eritmasidagi HClO ning dissotsilanish darajasini aniqlang. J: 1,29·10-3 %. 13.Dissotsilanish konstontasi 5,1·10-4 bo’lgan nitrit kislotaning 25 0C da 0,1 M li eritmasidagi nitrit kislotaning dissotsilanish darajasini aniqlang. J: 7,14·10-2 %. 14. Dissotsilanish darajasi 6,0·10-3 bo’lgan sirka kislotaning (CH3COOH) 25 0C da 0,5 M li eritmasidagi kislotaning dissotsilanish konstantasini aniqlang. J: 1,8·10-5 Download 148.44 Kb. Do'stlaringiz bilan baham: |
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