Calibration of Cu2+ shows a slope giving A = 2.0 * [Cu2+].
A solution with absorbance 0.40 has concentration:
- A
0.40 M
- B
0.10 M
- C
0.80 M
- Dcheck_circle
0.20 M
Explanation
From A = 2.0 * c, c = 0.40/2.0 = 0.20 M, matching the dashed grid line.
Beer-Lambert Law
AP Chemistry· difficulty 2/5
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