pengamatan kfa
DESCRIPTION
pengamatan kfaTRANSCRIPT
![Page 1: pengamatan kfa](https://reader036.vdokumen.com/reader036/viewer/2022082617/577c81a31a28abe054ad92ab/html5/thumbnails/1.jpg)
Data pengamatan
Konsentrasi(ppm) Absorbansi2 0.4954 0.5486 0.6158 0.68310 0.791
a : 0,4083
b : 0,036
r : 0,990
y =bx + a
0,552 = 0,036x + 0,4083
0,036x + 0,4083 = 0,552
0,036x = 0,552 – 0,4083
0,036x = 0,1437
x = 0,1437
0,036
x = 3,9916 ppm
Faktor pengenceran 50
0,08 = 625
Konsentrasi = ppm x faktor pengenceran
= 3,9916 x 625
= 2494,75 ppm
ppm = mg
1000 =
2494,75
1000 = x
50
2494,75 x 50 = x1000
124737,5
1000 = x
124,7375 mg = x
![Page 2: pengamatan kfa](https://reader036.vdokumen.com/reader036/viewer/2022082617/577c81a31a28abe054ad92ab/html5/thumbnails/2.jpg)
% kadar = mganalitmg sampelx 100 %
= 124,7375mg
1000mg x 100 %
= 12,4737 %