chemisch rekenen Flashcards

1
Q

relatieve atoommassa

A

Ar =ma/1,661. 10^-24
ma= absolute atoommassa
1,661. 10^-24= atoommassa constante = massa van 1 proton

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2
Q

relatieve molecuulmassa + eenheid!!

A

Mr= som van Ar
=Mx/1,661. 10^-24
in g/mol!
Mr= m/n

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3
Q

hoeveel is een mol

A

6,02. 10^23 deeltjes

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4
Q

x aantal deeltjes = x mol formule

A
n = N(x)/NA
NA= 6,02. 10^23
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5
Q

algemene gaswet

A

p. V= n. R. T

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6
Q

rendement van een reactie

A

η= werkelijke opbrengst/ theoretische opbrengst .100%

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7
Q

massadichtheid

+ eenheid

A

ρ= m/V in kg/m^3

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8
Q

molaire concentratie mol/l

A

c= n/V

mol/l

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9
Q

massa concentratie

A

c= m/V

g/V

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10
Q

massa concentratie in ml/l

A

c=V/V

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11
Q

procent

A

x. 10^2

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12
Q

promile

A

x. 10^3

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13
Q

PPM

A

x. 10^6

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14
Q

PPB

A

x. 10^9

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