arena 2 d φ φ φ n 2 d φ V 1 = n1V 1 − n 2n 2 dn 2 = V 1 − n1 dn 2 n1
1
ma)a 'ersamaan #i atas mena#i : i)a 'elarutn(a beru'a air n1 95551 ma)a 'ersamaann(a mena#i V 1
= V 1
d φ − 55,51 dn 2
V 1
= V 1
d φ − 55,51.2 d n 2
φ
φ
n2
2
n2
3/ 2
= V 1
φ
−
n2
2
55,51.2
d φ n 2 d n 2
.............(17 )
Persamaan 20 V
= n1V 1 + n 2V 2
i)a 'elarutn(a beru'a air #en"an molalitas m ma)a #alam 1000 "ram 'elarut a)an men"an#un" m mol 7at terlarut #an 5551 mol air se$in""a V
= 55,51V 1 + mV 2 >>20
Persamaan 23
massa total larutan rapat massa larutan (d)
Volume total larutan V 9
Nama : Ranis Sinar R Molar Persial NIM : 10513084
Percobaan N-1 Penentuan Volume 26 ebruari 2015
i)a 'elarut (an" #i"una)an a#ala$ air #en"an )onsentrasi larutan m molal ma)a V
=
(1000 + mV 2 ) d
3
cm
>%%23
Persamaan 24
Volume molar suatu 'elarut sama #en"an 'er)alian *olume molar 'arsial 'elarut murni V1o #en"an mol 'elarut n1 Volume 'arsial 'elarut sama #en"an massa 'elarut #iba"i ra'at massa
φ
n1V 1
=
1000 d o
3
cm
'elarut #o ma)a
>>%24
Persamaan 26
φ =
1000 d − d × m2 − d m d 1
o
o
)arena #alam 'ercobaan men""una)an 'i)nometer (an" sama ma)a *olume (an" #i"una)an untu) men"u)ur ra'at massa a#ala$ sama% an selisi$ antara ra'at massa sama #en"an selisi$ massa #iba"i *olume: d
− d = o
(w − w ) − (w − w ) e
o
e
d o
V
=
(w − w )
#an d
− d
o
d o
=
(w − w ) − (w − w ) (w − w ) = (w − w ) (w − w ) e
o
o
e
e
o
o
e
o
e
V
Nama : Ranis Sinar R Molar Persial NIM : 10513084
φ =
Percobaan N-1 Penentuan Volume 26 ebruari 2015
1000 d − d × m 2− d m d 1
o
o
#an )arena φ =
ma)a=
1000 ( w − w ) 2 − × m − ( ) d m w w 1