lembar perhitungan reagen.docx
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7/23/2019 LEMBAR PERHITUNGAN REAGEN.docx
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Spektrofotometri Anorganik
Laboratorium Dasar Teknik Kimia I C-1
LEMBAR PERHITUNGAN REAGEN
Menghitung konsentrasi (konsentrasi awal=2995,1832 ppm)
1.7ml
V1 . M1 =V2 . M2 (pengenceran 1) V1 . M1 =V2 . M2 (pengenceran 2)
7 . 2995,1832=50 . M2 10 . 419,3256=50 . M2
M2=
M2=
M2=419,3256 ppm M2=83,8651 ppm
2.9ml
V1 . M1 =V2 . M2 (pengenceran 1) V1 . M1 =V2 . M2 (pengenceran 2)
9 . 2995,1832=50 . M2 10 . 539,1329=50 . M2
M2=
M2=
M2=539,1329 ppm M2=107,8265 ppm
3.11m
V1 . M1 =V2 . M2 (pengenceran 1) V1 . M1 =V2 . M2 (pengenceran 2)
11 . 2995,1832=50 . M2 10 . 658,9403=50 . M2
M2=
M2=
M2=658,9403 ppm M2=131,7880 ppm
4.13ml
V1 . M1 =V2 . M2 (pengenceran 1) V1 . M1 =V2 . M2 (pengenceran 2)
13 . 2995,1832=50 . M2 10 . 778,7476=50 . M2
M2=
M2=
M2=778,7476 ppm M2=155,7495 ppm