0
sincostan
sin-1cos-1tan-1πe
xyx3x2ex10x
y√x3√x√xlnlog
()1/x%n!
789+Back
456–Ans
123×M+
0.EXP/M-
±RNDAC=MR
powered by calculator.net
Chemie - 2003 - Juli
Toelatingsexamens arts en tandarts
Examenvragen
Examenvragen
|
- none
- Toelatingsexamen arts en tandarts (Gereconstrueerd) - <a id='sourceHref' href='http://www.keu6.be/geneeskunde.html' style='font-size:0px;' target='_blank'>Bron</a> (Aangepast)
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=1&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=2&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=3&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=4&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=1&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=2&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=3&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=4&language=nl&mode=3&version=67&fs=1
Chemie - 2003 - Juli
Toelatingsexamens arts en tandarts
Examenvragen
Examenvragen
|
- none
- Toelatingsexamen arts en tandarts (Gereconstrueerd) - <a id='sourceHref' href='http://www.keu6.be/geneeskunde.html' style='font-size:0px;' target='_blank'>Bron</a> (Aangepast)
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=1&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=2&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=3&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=4&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=1&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=2&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=3&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=4&language=nl&mode=3&version=67&fs=1
Chemie - 2003 - Juli
Toelatingsexamens arts en tandarts
Examenvragen
Examenvragen
|
- none
- Toelatingsexamen arts en tandarts (Gereconstrueerd) - <a id='sourceHref' href='http://www.keu6.be/geneeskunde.html' style='font-size:0px;' target='_blank'>Bron</a> (Aangepast)
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=1&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=2&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=3&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=4&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=1&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=2&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=3&language=nl&mode=3&version=67&fs=1
- https://sirtaqi.com/nl/academy/slide?courseID=2384&year=2003&month=Juli&slideID=4&language=nl&mode=3&version=67&fs=1
Rekenmachine
Algemeen
Het is de bedoeling de vragen zonder rekenmachine op te lossen.
√2 = 1,41 en √3 = 1,73, log(2) = 0,30 en log(3) = 0,48
Constanten en formules
Algemene gaswet: p * V = n * R * T
Molair gasvolume bij 273 K en 1013 hPa: 22,41 L
Molaire gasconstante: R = 8,31 J/(K*mol)
Omrekening graden kelvin – graden celsius:
T = 0 K dan θ = -273 oC
Massa elektron: me = 9,10 * 10-31 kg
Massa proton: mp = 1,67 * 10-27 kg
Massa neutron: mn = 1,67 * 10-27 kg
Getal van Avogadro: NA = 6,02 * 1023
π = 3,14 √2 = 1,41 log 2 = 0,30
log 3 = 0,48 log 5 = 0,70
e = 2,72 ln 2 = 0,69 ln 3 = 1,10 ln 5 = 1,61
Periodiek Systeem der Elementen
*Z = Atoomnummer, Ar = relatieve atoommassa, E.N. = elektronegatieve waarde
| Naam | Sym | Z* | Ar* | E.N.* |
|---|---|---|---|---|
| Actinium | Ac | 89 | [227] | 1,10 |
| Aluminium | Al | 13 | 26,98 | 1,61 |
| Americium | Am | 95 | [243] | 1,30 |
| Antimoon | Sb | 51 | 121,76 | 2,05 |
| Argon | Ar | 18 | 39,95 | |
| Arseen | As | 33 | 74,92 | 2,18 |
| Astatine | At | 85 | [210] | 2,20 |
| Barium | Ba | 56 | 137,33 | 0,89 |
| Berkelium | Bk | 97 | [247] | 1,30 |
| Beryllium | Be | 4 | 9,012 | 1,57 |
| Bismuth | Bi | 83 | 208,98 | 2,02 |
| Bohrium | Bh | 107 | [270] | |
| Boor | B | 5 | 10,81 | 2,04 |
| Broom | Br | 35 | 79,9 | 2,96 |
| Cadmium | Cd | 48 | 112,41 | 1,69 |
| Calcium | Ca | 20 | 40,08 | 1,00 |
| Californium | Cf | 98 | [251] | 1,30 |
| Cerium | Ce | 58 | 140,12 | 1,12 |
| Cesium | Cs | 55 | 132,91 | 0,79 |
| Chloor | Cl | 17 | 35,45 | 3,16 |
| Chroom | Cr | 24 | 52 | 1,66 |
| Copernicium | Cn | 112 | [285] | |
| Curium | Cm | 96 | [247] | 1,30 |
| Darmstadtium | Ds | 110 | [281] | |
| Dubnium | Db | 105 | [268] | |
| Dysprosium | Dy | 66 | 162,5 | 1,22 |
| Einsteinium | Es | 99 | [252] | 1,30 |
| Erbium | Er | 68 | 167,26 | 1,24 |
| Europium | Eu | 63 | 151,96 | |
| Fermium | Fm | 100 | [257] | 1,30 |
| Flerovium | Fl | 114 | [289] | |
| Fluor | F | 9 | 19 | 3,98 |
| Fosfor | P | 15 | 30,97 | 2,19 |
| Francium | Fr | 87 | [223] | 0,70 |
| Gadolinium | Gd | 64 | 157,25 | 1,20 |
| Gallium | Ga | 31 | 69,72 | 1,81 |
| Germanium | Ge | 32 | 72,63 | 2,01 |
| Goud | Au | 79 | 196,97 | 2,54 |
| Hafnium | Hf | 72 | 178,49 | 1,30 |
| Hassium | Hs | 108 | [269] | |
| Helium | He | 2 | 4,003 | 0,00 |
| Holmium | Ho | 67 | 164,93 | 1,23 |
| Ijzer | Fe | 26 | 55,84 | 1,83 |
| Indium | In | 49 | 114,82 | 1,78 |
| Iridium | Ir | 77 | 192,22 | 2,20 |
| Jodium | I | 53 | 126,9 | 2,66 |
| Kalium | K | 19 | 39,1 | 0,82 |
| Kobalt | Co | 27 | 58,93 | 1,88 |
| Koolstof | C | 6 | 12,01 | 2,55 |
| Koper | Cu | 29 | 63,55 | 1,90 |
| Krypton | Kr | 36 | 83,8 | 3,00 |
| Kwik | Hg | 80 | 200,59 | 2,00 |
| Lanthanum | La | 57 | 138,91 | 1,10 |
| Lawrencium | Lr | 103 | [262] | |
| Lithium | Li | 3 | 6,941 | 0,98 |
| Livermorium | Lv | 116 | [293] | |
| Lood | Pb | 82 | 207,2 | 2,33 |
| Lutetium | Lu | 71 | 174,97 | 1,27 |
| Magnesium | Be | 12 | 24,31 | 1,31 |
| Mangaan | Mn | 25 | 54,94 | 1,55 |
| Meitnerium | Mt | 109 | [278] | |
| Mendelevium | Md | 101 | [258] | 1,30 |
| Molybdeen | Mo | 42 | 95,94 | 2,16 |
| Moscovium | Mc | 115 | [289] | |
| Natrium | Na | 11 | 22,99 | 0,93 |
| Neodymium | Nd | 60 | 144,24 | 1,14 |
| Neon | Ne | 10 | 20,18 | |
| Neptunium | Np | 93 | [237] | 1,36 |
| Nihonium | Nh | 113 | [286] | |
| Nikkel | Ni | 28 | 58,69 | 1,91 |
| Niobium | Nb | 41 | 92,91 | 1,60 |
| Nobelium | No | 102 | [259] | 1,30 |
| Oganesson | Og | 118 | [294] | |
| Osmium | Os | 76 | 190,23 | 2,20 |
| Palladium | Pd | 46 | 106,42 | 2,20 |
| Platinum | Pt | 78 | 195,08 | 2,28 |
| Plutonium | Pu | 94 | [244] | 1,28 |
| Polonium | Po | 84 | [209] | 2,00 |
| Praseodymium | Pr | 59 | 140,91 | 1,13 |
| Promethium | Pm | 61 | [145] | |
| Protactinium | Pa | 91 | 231,04 | 1,50 |
| Radium | Ra | 88 | [226] | 0,90 |
| Radon | Rn | 86 | [222] | |
| Rhenium | Re | 75 | 186,21 | 1,90 |
| Rhodium | Rh | 45 | 102,91 | 2,28 |
| Roentgenium | Rg | 111 | [281] | |
| Rubidium | Rb | 37 | 85,47 | 0,82 |
| Ruthenium | Ru | 44 | 101,07 | 2,20 |
| Rutherfordium | Rf | 104 | [267] | |
| Samarium | Sm | 62 | 150,36 | 1,17 |
| Scandium | Sc | 21 | 44,96 | 1,36 |
| Seaborgium | Sg | 106 | [269] | |
| Selenium | Se | 34 | 78,96 | 2,55 |
| Silicium | Si | 14 | 28,09 | 1,90 |
| Stikstof | N | 7 | 14,01 | 3,04 |
| Strontium | Sr | 38 | 87,62 | 0,95 |
| Tantalum | Ta | 73 | 180,95 | 1,50 |
| Technetium | Tc | 43 | [98] | 1,90 |
| Tellurium | Te | 52 | 127,6 | 2,10 |
| Tennessine | Ts | 117 | [294] | |
| Terbium | Tb | 65 | 158,93 | |
| Thallium | Tl | 81 | 204,38 | 1,62 |
| Thorium | Th | 90 | 232,04 | 1,30 |
| Thulium | Tm | 69 | 168,93 | 1,25 |
| Tin | Sn | 50 | 118,71 | 1,96 |
| Titanium | Ti | 22 | 47,87 | 1,54 |
| Tungsten | W | 74 | 183,84 | 2,36 |
| Uranium | U | 92 | 238,03 | 1,38 |
| Vanadium | V | 23 | 50,94 | 1,63 |
| Waterstof | H | 1 | 1,008 | 2,20 |
| Xenon | Xe | 54 | 131,29 | 2,60 |
| Ytterbium | Yb | 70 | 173,04 | |
| Yttrium | Y | 39 | 88,91 | 1,22 |
| Zilver | Ag | 47 | 107,87 | 1,93 |
| Zink | Zn | 30 | 65,39 | 1,65 |
| Zirconium | Zr | 40 | 91,22 | 1,33 |
| Zuurstof | O | 8 | 16 | 3,44 |
| Zwavel | S | 16 | 32,07 | 2,58 |
Oplosbaarheidstabel
Oplosbaarheid van ionverbindingen in water
| Zijn goed oplosbaar | behalve die van |
|---|---|
| Nitraten | |
| Acetaten | |
| Chloraten | |
| Chloriden | Ag+ en Hg+ |
| Bromiden | Ag+ en Hg+ |
| Jodiden | Ag+, Hg+, Hg2+ en Pb2+ |
| Sulfaten | Ba2+, Pb2+, Sr2+ en Hg+ |
| Zijn slecht oplosbaar | behalve die van |
| Hydroxiden | Na+, K+ en Ba2+ |
| Sulfiden | Na+, K+ en NH4+ |
| Sulfieten | Na+, K+ en NH4+ |
| Carbonaten | Na+, K+ en NH4+ |
| Fosfaten | Na+, K+ en NH4+ |
Examenvragen - Chemie - Juli 2003
Vraag: Juli 2003
Welke van de volgende waterige oplossingen zal het best de stroom geleiden?<A> 0,010 M NH3
<B> 0,010 M NaCl
<C> 0,010 M CH3COOH
<D> 0,020 M CH3COOH
Door een deelnemer gereconstrueerde vraag
Antwoord: B
Een Na-zout lost goed op en zal volledig dissociëren in water.De oplossing zal de stroom dan ook goed geleiden.
NH3 is een zwakke base en zal dus een beperkt aantal ionen opleveren
CH3COOH is een zwak zuur en zal dus een beperkt aantal ionen opleveren
Sirtaqi