data pengamatan dan perhitungan kfa inh
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formulasiTRANSCRIPT
A. DATA PENGAMATAN DAN PERHITUNGAN
1. Data Pengamatan
Pengenceran 130 mg .
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.
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AbsSAMPEL = 0.518
2. Perhitungan
Y = 0.0277x + 0.0124
0.518 = 0.0277x + 0.0124
0.0277x = 0.518 - 0.0124
X =
= 18.2527 ppm x 160
= 2920.43
No [ ] (ppm) Abs1 10 0.2842 12.5 0.3733 15 0.4354 17.5 0.4825 20 0.5556 22.5 0.651
Berat sampel =
= 73.0108 mg
% kadar = = 56.1622 % b/b