Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter12: Atomic X-ray Spectrometry
Section: Chapter Questions
Problem 12.8QAP
Related questions
Question
Is the reaction endothetmic or exothermic？Fe3+(aq) + HSCN (aq) ↔ FeSCN2+(aq) + H+ (aq)
![PLES
44
Data sheet
Table 1
CRLSUNJCH)
CResyCN
Sampl Volume of
Volume of Volume of
Initial
%T
[HSCN]
Initial
0.200 M
Fe(NOs)
Absorbanc
e at 445
R.
KSCN
(Fe]
0.250 M
0.00040M
HNO
nm
10.00 ml
0. 250
(D ano CO.2512H)
10.00 ml
0.00 ml
0.olM
2
0.0bo-00soz000-0s 0.00001 O 250 +0. iu
10.00 ml
8.00 ml
2.00 ml
0-OIM 0.00016M 13.9
o 8569952
3
10.00 ml
6.00 ml
4.00 ml
D.350012414
0. O1M 0.0012M 3.3 |0 6326
R.
Efe] LHSCN] I fesCN] l IH' ]
4
10.00 ml
4.00 ml
6.00 ml
0. Olm 0.000 SM 37.1 |0.4Au
0. 250
Table 2
kaya l. 259
Sample Volume of Volume of Volume of
0.0200 M KSCN
Fe(NO)3
Initial
0. 250095904
Initial
%T
Absorbanc
0.250 M
0,00040M HNO,
[Fe]
[HSCN]
e at 445
E Fets] [HSCN1 [FesON t2] [H'1
nm
1
10.00 ml
10,00 ml
0.00 ml
0-0lM 0 23.
0.6364
0.0100
0.00a
0-350
key = 0.87
ーズ
E 0-oloo-0.0006H 0-0002-0.00 o-0000067386|0.35o +D.00067386
0. a099933
2.
10,00 ml
8.00 ml
2.00 ml
-J
0.OIM 0.000IEM 31.9 0.4962
3
10,00 ml
6.00 ml
4.00 ml
0.00O|2 M44. I O. 3556
44.10. 3556
0.000067 386
0.2500067386
0.0IM
4
10,00 ml
4.00 ml
6.00 ml
TH
I Fe'3] IHSCNI
0-0100
0.OIM 0.000YM 55.8
O. 25 34
5/
(0.000046770.2o
10.00 ml
4,00 ml
6.00 ml
Ife SaN 21
warm
0.000g.
0. 250
Kay= 0-3505.
2- lg(231): 0.6364
2-ly (s: 0. 4962
2.
0.30499533.
0-000153310.0000 467 297
.25000 4673
2- ty (44.1):0.3556
2-し55.3): 0.25らs4
Averge Ka
1.65 658 + 1.299 +u.s7+0.55030
=1.08402](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff7e0b628-1887-4036-8cfa-486903c53c1e%2Fe1021cbd-9d98-4974-85c0-86592f5f070d%2Fq3liijg_processed.jpeg&w=3840&q=75)
Transcribed Image Text:PLES
44
Data sheet
Table 1
CRLSUNJCH)
CResyCN
Sampl Volume of
Volume of Volume of
Initial
%T
[HSCN]
Initial
0.200 M
Fe(NOs)
Absorbanc
e at 445
R.
KSCN
(Fe]
0.250 M
0.00040M
HNO
nm
10.00 ml
0. 250
(D ano CO.2512H)
10.00 ml
0.00 ml
0.olM
2
0.0bo-00soz000-0s 0.00001 O 250 +0. iu
10.00 ml
8.00 ml
2.00 ml
0-OIM 0.00016M 13.9
o 8569952
3
10.00 ml
6.00 ml
4.00 ml
D.350012414
0. O1M 0.0012M 3.3 |0 6326
R.
Efe] LHSCN] I fesCN] l IH' ]
4
10.00 ml
4.00 ml
6.00 ml
0. Olm 0.000 SM 37.1 |0.4Au
0. 250
Table 2
kaya l. 259
Sample Volume of Volume of Volume of
0.0200 M KSCN
Fe(NO)3
Initial
0. 250095904
Initial
%T
Absorbanc
0.250 M
0,00040M HNO,
[Fe]
[HSCN]
e at 445
E Fets] [HSCN1 [FesON t2] [H'1
nm
1
10.00 ml
10,00 ml
0.00 ml
0-0lM 0 23.
0.6364
0.0100
0.00a
0-350
key = 0.87
ーズ
E 0-oloo-0.0006H 0-0002-0.00 o-0000067386|0.35o +D.00067386
0. a099933
2.
10,00 ml
8.00 ml
2.00 ml
-J
0.OIM 0.000IEM 31.9 0.4962
3
10,00 ml
6.00 ml
4.00 ml
0.00O|2 M44. I O. 3556
44.10. 3556
0.000067 386
0.2500067386
0.0IM
4
10,00 ml
4.00 ml
6.00 ml
TH
I Fe'3] IHSCNI
0-0100
0.OIM 0.000YM 55.8
O. 25 34
5/
(0.000046770.2o
10.00 ml
4,00 ml
6.00 ml
Ife SaN 21
warm
0.000g.
0. 250
Kay= 0-3505.
2- lg(231): 0.6364
2-ly (s: 0. 4962
2.
0.30499533.
0-000153310.0000 467 297
.25000 4673
2- ty (44.1):0.3556
2-し55.3): 0.25らs4
Averge Ka
1.65 658 + 1.299 +u.s7+0.55030
=1.08402
![3t
Fo
+14
[fa SCNITH]
e sca1
Abs
CFesaN]
+ H* cag.
Fe cag + HSCN,a4s Fe ScN
O.100
0.250
C.
0.250 +3
KSNA HNO 3 ClassS HSCN t KNO3
4.00X 10* M
0-250M
y=4947.6x +0222.
R230.9911.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff7e0b628-1887-4036-8cfa-486903c53c1e%2Fe1021cbd-9d98-4974-85c0-86592f5f070d%2Fq18iy2l_processed.jpeg&w=3840&q=75)
Transcribed Image Text:3t
Fo
+14
[fa SCNITH]
e sca1
Abs
CFesaN]
+ H* cag.
Fe cag + HSCN,a4s Fe ScN
O.100
0.250
C.
0.250 +3
KSNA HNO 3 ClassS HSCN t KNO3
4.00X 10* M
0-250M
y=4947.6x +0222.
R230.9911.
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