Download - Sastav Tvari Empirijska i Molekulska Formula
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O
N
H
H
SO
H
PO
CuSO
H
O
NaCl
Na Cl
NaCl Na
Cl :
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7/25/2019 Sastav Tvari Empirijska i Molekulska Formula
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H
SO
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7/25/2019 Sastav Tvari Empirijska i Molekulska Formula
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W
W(A) = m(A)
m ;
W(A)
m(A)
m
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7/25/2019 Sastav Tvari Empirijska i Molekulska Formula
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.
%
.
%
.
%
. gcm
W(masti) = . % = . W(bjelan.) = . % = . W(secera) = . % = . W(H
O) =? m(H
O) =?
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%
W(H
O) = % ( . % + . % + . %) = . % = .
(mlijeka) = m(mlijeka)
V(mlijeka)
m(mlijeka) = (mlijeka)V(mlijeka)
m(mlijeka) = . g
cm cm = g
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W(vode) = m(vode)
m(mlijeka) m(vode) =W(vode) m(mlijeka)
m(vode) = . g= . g
.
g
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%
kg
m(Fe) = kgW(Fe) = % = . m(rude) =?
W(Fe) = m(Fe)m(rude)
m(rude) = m(Fe)W(Fe)
= kg
.
= kg
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U
O
. % U
O
t
W(U
O
) =
.
% =
.
m(rude) = t= kgm(U
O
) =?
W(U O ) = m(U
O
)
m(rude) m(U O ) =m(rude) W(U O )
m(U
O
) = kg . = . kg
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7/25/2019 Sastav Tvari Empirijska i Molekulska Formula
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ma mm
W(A) =j(A) ma
mm;
j(A)
ma =Ar u mm =Mr u
W(A) =j(A) Ar(A)
Mr
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W(A)
j(A) =W(A) Mr
Ar(A);
Ar
Mr
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j(H) =
j(O) = W(H) =? W(O) =?
W(H) =j(H)Ar(H)
Mr=
.
.
= . = . %
W(O) =j(O)Ar(O)
Mr=
.
= .
=
.
%
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7/25/2019 Sastav Tvari Empirijska i Molekulska Formula
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H
PO
j(H) = j(P) = j(O) =
W(H) =? W(P) =? W(O) =?m(H) =? m(P) =? m(O) =?
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W(H) =j(H) Ar(H)Mr
= .
= . = . %
W(P) =j(P) Ar(P)
Mr=
= . = . %
W(O) =j(O) Ar(O)Mr
=
= . = . %
W(A) =
m(A)
m m(A) =W(A) m
m(H) = . g, m(P) = . g, m(O) = . g
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Al . g Al
O
m(Al
O
) = .
g
m(Al) =?
W(Al) =j(Al) Ar(Al)
Mr=
= .
m(Al) =W(Al) m(Al
O
) = .
g
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7/25/2019 Sastav Tvari Empirijska i Molekulska Formula
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.
t Al
O
+H
O . t Al
Al Al
O
+H
O
Al
W(Al) =j(Al) Ar(Al)
Mr(Al O + H O)=
= .
Al . t
m(Al) =W(Al) m(Al
O
+ H
O) = . t
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I =m(stvarno)
m(teoretsko)=
. t
.
t=
.
Al
O
+
H
O
I m(rude) = . . t= . t
m(jalovine) = .
t
.
t=
.
t
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