MOL leren kennen en uitbalanceren

Chemisch rekenen
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ChemieSecundair onderwijs

This lesson contains 32 slides, with interactive quiz, text slides and 1 video.

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Chemisch rekenen

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118 chemische elementen = atomen
94-118 => synthetiseren

50miljoen moleculen en elke 3seconden wel eentje extra...

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MOL
Amedeo Avogadro (1776-1856) + Loschmidt

     deeltjes   in  1MOL

602.214.150.000.000.000.000.000 atomen

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WATERH20

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1 mol
Water
?
M(H20) X g/mol   
=              deeltjes

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periodiek tabel

602.214.150.000.000.000.000.000 atomen
18,01g = 18,01ml = 1mol =
Water
M(H20)18,01 g/mol  
deeltjes

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Hoeveel gram weegt 1 mol Glucose



A
29,18 g/mol
B
180,19 g/mol
C
30,02 g/mol
D
290,18 g/mol

Slide 13 - Quiz

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M(mol) = Xg/mol => periodieke tabel = atoommassa
Hoeveel gram H2 en O2 is er nodig om 200g H20 te vormen?

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2molecule H2
1molecule O2
2molecule H20
2 x 6,023.1023deeltjes
1 x 6,023.1023deeltjes
2 x 6,023.1023deeltjes
2mol H2 
1mol O2
2mol H2O

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verhouding
2mol H2
1mol O2
2mol H20
geg
200g H2O
gevr
x g H2
x g O2
200g H2O
M(mol) = Xg/mol => periodieke tabel = atoommassa
Hoeveel gram H2 en O2 is er nodig om 200g H20 te vormen?

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verhouding
2mol H2
1mol O2
2mol H20
geg/gevr
?
?
200g H2O
mol?
M(H) = 1g/mol 
M(O) = 16g/mol
M(H20) = 18,01g/mol

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verhouding
2mol H2
1mol O2
2mol H20
geg/gevr
x g ?
x g?
200g H2O
mol?
11,01 mol
5,5 mol
11,01 mol
M(H) = 1g/mol - M(O) = 16g/mol -M(H20) = 18,01g/mol
x mol H20 in 200g?
n = m(H20)/M(H20) = 200g / 18,01g/mol  =  11,1 mol
5,5 mol O2 => m = n x M(O2) = 5,5 mol X 32g/mol = 176g
11,01 mol H2 => m = n x M(H2) = 11,01 mol X 2g/mol = 22,02g

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Oefeningen
Chemisch rekenen
BASIS

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TIP: Balanceer de vergelijking eerst uit!!!

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BASIS

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double check
Reken jij verder?
Double check?  = > triple check?

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Slide 29 - Video

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Een Chemische reactie is een reactie waarbij nieuwe stoffen ontstaan

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