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NATIONAL SENIOR CERTIFICATE: PHYSICAL SCIENCES: PAPER II – DATA SHEET Page i of iii
EXAMINATION DATA SHEET FOR THE PHYSICAL SCIENCES
(CHEMISTRY)
TABLE 1 PHYSICAL CONSTANTS
NAME SYMBOL VALUE
Magnitude of charge on electron e 1,6 10–19 C
Mass of an electron me 9,1 10–31 kg
Standard pressure pθ 1,01 105 Pa
Molar gas volume at STP Vm 22,4 dm3 mol–1
Standard temperature Tθ 273 K
Avogadro's constant NA 6,02 10 23 mol–1
Faraday's constant F 96 500 C mol–1
TABLE 2 CHEMISTRY FORMULAE
m N V
n n n
M NA Vm
n m
c OR c
V MV Kw [ H3O ] [ OH ] 1 10–14 at 298 K
θ θ θ
Ecell Ecathode Eanode
Q It
θ θ θ
Ecell Eoxidising agent Ereducing agent
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P2 Data Booklet 2017 hlayiso.com
Physical Sciences · Grade 12 · 2017. Question paper, 3 pages. Read online or download the PDF.
- Subject
- Physical Sciences
- Grade
- Grade 12
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- Question paper
- Year
- 2017
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NATIONAL SENIOR CERTIFICATE: PHYSICAL SCIENCES: PAPER II – DATA SHEET Page ii of iii
TABLE 3 PERIODIC TABLE
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1 2,1 Atomic number (Z) 1 2,1 Electronegativity 2
1 H He
1 H 4
3 1,0 4 1,5 5 2,0 6 2,5 7 3,0 8 3,5 9 4,0 10
1
2 Li Be Relative atomic mass B C N O F Ne
7 9 10,8 12 14 16 19 20
11 0,9 12 1,2 13 1,5 14 1,8 15 2,1 16 2,5 17 3,0 18
3 Na Mg Aℓ Si P S Cℓ Ar
23 24,3 27 28 31 32 35,5 40
19 0,8 20 1,0 21 1,3 22 1,5 23 1,6 24 1,6 25 1,5 26 1,8 27 1,8 28 1,8 29 1,9 30 1,6 31 1,6 32 1,8 33 2,0 34 2,4 35 2,8 36
4 K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
39 40 45 48 51 52 55 56 59 59 63,5 65,4 70 72,6 75 79 80 84
37 0,8 38 1,0 39 1,2 40 1,4 41 1,6 42 1,8 43 1,9 44 2,2 45 2,2 46 2,2 47 1,9 48 1,7 49 1,7 50 1,8 51 1,9 52 2,1 53 2,5 54
5 Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
85,5 88 89 91 93 96 99 101 103 106 108 112 115 119 121 128 127 131
55 56 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
6 Cs Ba Hf Ta W Re Os Ir Pt Au Hg Tℓ Pb Bi Po At Rn
133 137,3 178,5 181 184 186 190 192 195 197 200,6 204,4 207 209 – – –
87 88
7 Fr Ra
57 58 59 60 61 62 63 64 65 66 67 68 69 70 71
La Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
89 90 91 92 93 94 95 96 97 98 99 100 101 102 103
Ac Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lw
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NATIONAL SENIOR CERTIFICATE: PHYSICAL SCIENCES: PAPER II – DATA SHEET Page iii of iii
TABLE 4 STANDARD ELECTRODE POTENTIALS
Half-reaction E°/volt
Li + e–
+
⇌ Li –3,05
+ –
K +e ⇌ K –2,93
Cs+ + e– ⇌ Cs –2,92
2+ –
Ba + 2e ⇌ Ba –2,90
2+ –
Sr + 2e ⇌ Sr –2,89
2+ –
Ca + 2e ⇌ Ca –2,87
Na+ + e– ⇌ Na –2,71
2+ –
Mg + 2e ⇌ Mg –2,37
3+ –
Aℓ + 3e ⇌ Aℓ –1,66
Mn2+ + 2e– ⇌ Mn –1,18
–
2H2O + 2e ⇌ H2(g) + 2OH– –0,83
Zn2+ + 2e– ⇌ Zn –0,76
3+ –
Cr + 3e ⇌ Cr –0,74
Increasing reducing ability
Fe2+ + 2e– ⇌ Fe –0,44
2+ –
Cd + 2e ⇌ Cd –0,40
2+ –
Co + 2e ⇌ Co –0,28
2+ –
Ni + 2e ⇌ Ni –0,25
Increasing oxidising ability
Sn2+ + 2e– ⇌ Sn –0,14
2+ –
Pb + 2e ⇌ Pb –0,13
3+ –
Fe + 3e ⇌ Fe –0,04
2H+ + 2e– ⇌ H2(g) 0,00
+ –
S + 2H + 2e ⇌ H2S(g) +0,14
4+ –
Sn + 2e ⇌ Sn2+ +0,15
SO42– + 4H+ + 2e– ⇌ SO2(g) + 2H2O +0,17
Cu2+ + 2e– ⇌ Cu +0,34
–
2H2O + O2 + 4e ⇌ 4OH– +0,40
+ –
SO2 + 4H + 4e ⇌ S + 2H2O +0,45
I2 + 2e– ⇌ 2I– +0,54
O2(g) + 2H+ + 2e– ⇌ H2O2 +0,68
3+ –
Fe + e ⇌ Fe2+ +0,77
2+ –
Hg + 2e ⇌ Hg +0,79
NO3– + 2H+ + e– ⇌ NO2(g) + H2O +0,80
+ –
Ag + e ⇌ Ag +0,80
– + –
NO3 + 4H + 3e ⇌ NO(g) + 2H2O +0,96
–
Br2 + 2e ⇌ 2Br– +1,09
Pt2+ + 2e– ⇌ Pt +1,20
+ –
MnO2 + 4H + 2e ⇌ Mn2+ + 2H2O +1,21
+ –
O2 + 4H + 4e ⇌ 2H2O +1,23
Cr2O72– + 14H+ + 6e– ⇌ 2Cr3+ + 7H2O +1,33
Cℓ2(g) + 2e– ⇌ 2Cℓ– +1,36
Au3+ + 3e– ⇌ Au +1,42
– + –
MnO4 + 8H + 5e ⇌ Mn2+ + 4H2O +1,51
H2O2 + 2H+ + 2e– ⇌ 2H2O +1,77
–
F2(g) + 2e ⇌ 2F– +2,87
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