Question
How do I fill table 1? And calculation? [Fe(NO 3 ) 3 in 1 M HNO 3 ] = 0.2 M [KSCN] = 1.99 x
How do I fill table 1? And calculation?
[Fe(NO3)3 in 1 M HNO3] = 0.2 M [KSCN] = 1.99 x 10-3 M
Solution | Volume in mL 0.2 Fe(NO3)3 in 1 M HNO3 | Volume of KSCN | Volume of distilled H2O | Absorbance | T oC |
Blank | Filled Cuvette | ---------- | ---------- | 0.001 | 21.3 |
Cal 1 | 10.0 | 1.05 | 8.95 | 0.270 | 22.1 |
Cal 2 | 10.0 | 1.90 | 7.95 | 0.715 | 22.1 |
Cal 3 | 10.0 | 2.90 | 8.05 | 1.090 | 22.1 |
Cal 4 | 10.0 | 4.15 | 5.95 | 1.585 | 22.1 |
a. Fill the following table 1. with [FeSCN2+]:
Solution | [FeSCN2+] M | Absorbance | T oC |
Blank | 0.001 | 21.3 | |
Cal 1 | 0.270 | 22.1 | |
Cal 2 | 0.715 | 22.1 | |
Cal 3 | 1.090 | 22.1 | |
Cal 4 | 1.585 | 22.1 |
b. Show a sample calculation determining [FeSCN2+] for Cal 1 solution:
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