العدد اليومى

صﺎﺧ ﻒﻠﻣ 04 ـﻫ1444 ﺔﺠﺤﻟا وذ 2 - 2023 ﻮﻴﻧﻮﻳ 20 ءﺎﺛﻼﺜﻟا 4403 دﺪﻌﻟا Tuesday - 20 June 2023 - Issue NO 4403 1 NH4+,H3O , OH- ,NH OH NH4OH NH4+,OHNH +,OH- H3O+ , OH2 II Fe+3 + 2Mn+2 + 7H2O Fe+2+MnO4- + 16H → 6Fe+3 +2 Cr+3 + 7H O 6Fe+2 + MnO - + 16H+ Fe+3 +2Cr+3 +7H2O Fe+2 +Cr2O7- + 14H+ 10Fe+3 + 2Mn+2 + 8H2O 10Fe+2 +2MnO4-+16H+→ 3 (X) (Y) X=2,375 V Y=0,407V X X 4 4g 0,2M 75ml (Na=23 Br=80 38,625% 61,375% 30,34% 75% 14 (A) C + B A→ :(B) FeCl (C) HCl (A) 1 6 4 5 15 A: FeCO B=FeO C=FeCl A=FeSO B=Fe O C=Fe (SO A:FeCO B=Fe O C=FeCl A:FeSO B=Fe O C=FeCl 16 3 A B NH4OH C C,B,A A S- B SO - C PO - A S- B Cl- C SO -2 A Cl- B SO - C CO - A SO - B PO - C O17 18 D C B A 2 10- 2 10-3 2 10- 2 10-10 PH C B A D 19 k k k 21 (D) (C) (B) (A) (A) (B) (C) (D) D,C A,B C,B D,A 21 B,A (A) (B) A ← A ← B B ← B ← A A B A B ← A ← B 22 (X) 1 (X) N O Cl H 23 D C H CH C H C H C H 24 (X) X Ar:3d Ar:3d Ar:3d Ar:3d 25 K H O K POH K PH Kb OH26 C,B,A COOH - O - - OH COOR OH COOH -OH NH -OH COOR 111 27 2 5 2 5 28 B,A 29 3 A B C A B C,B,A A<C<B B>A>C B<C<A C>A>B 30 CH COOH + CH OH ���� �������� CH COOCH + H O BaCl + Na SO BaSO + 2NaCl 2H + O2 → 2H O N + 3H2 → 2NH 5 3 (Z,Y,X) (B) X ← Y ← Z ← X=C6H6O Z=NH4SCN X=C2H OH , B=FeCl3 Z=CH COOH ,B=FeCl X=CH COOCH B=FeCl 6 1-C +O2 ∆ → CO2 KC1 [�������� ] [�������� 2- 2C + O2 ∆ → 2CO , KC2 = �������� [�������� KC3 2CO CO + C → ���� ������������ ���� ������������ KC1 , KC2 ���� ������������ ������������ 7 – – Fe – Over 700 – – Fe – – –– – – Fe –8 *NH +=5M , *H = 6 M *N + =4M NH3 34,56 5,878 0,58 0,34 :داﺪﻋإ ﺮﻘﺻ ﺪﻟﺎﺧ .أ ءﺎﻴﻤﻴﻜﻟا ذﺎﺘﺳأ ﺮﺼﻧ دﻮﻤﺤﻣ :فاﺮﺷإ 9 2 2 1 11 (X) Y X Y 1 1 1 11 Ni+2(aq)+2Ag (s) →Ni (s) + 2Ag(+) Ni→ Ni+2 + 2e- emf=0,23 V 2Ag +2e- 2Ag0 emf = +0,8 emf=0,564 V emf=1,03 emf = -1,03 V emf = -0,564 V 12 13 +2 +4 / ءﺎﻴﻤﻴﻜﻟا ةدﺎﻣ ﻰﻓ ﺔﻣﺎﻌﻟا ﺔﻳﻮﻧﺎﺜﻟا بﻼﻄﻟ نﺎﺤﺘﻣﻻا ﺔﻠﻴﻟ ﺔﻌﺟاﺮﻣ 3 4 5 6 7 2 1 37 Na - Ca+2 NH4 - Mg+2 K - Pb+2 Ca+2 – Mg+2 38 C5H10O CH -OH C2H5OH C3H7OH C H9OH 39 1 mol 2 mol 3mol 4mol 5mol 41 C10H22 41 42 PH POH 43 X 44 B A B,A 9 45 III – – – –– – – –46 47 62 g/mol ( C=12 , O=16 H=1 ) 48 1 emf 2 PH 3 49 0.05 mol (Br=80) (24 g 51 Ph 3 10 31 +H2SO4 → Na SO4 + X (g) +H (X) 32 33 4F 2 MCl MCl2 MCl MCl3 34 (X) (X) (X) X Ca(NO ) CaCl CaBr CaCO 35 B A A B B A Br2 CCl4 NaHCO FeCl3 36 MnCl2 + 2H2O + Cl2 → MnO2 + 4HCl 2Cl- → Cl + 2e- Cl + 2e- 2ClMnO + 2e- MnCl2 Mn+4 Mn+2 + 2e8