hasil lapak nitrimetri
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Transcript of hasil lapak nitrimetri
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8/19/2019 hasil lapak nitrimetri
1/3
HASIL
Standarisasi Larutan Natrium Nitrit
1 2
Massa Asam
Sulfanilat
173,25
mg
173,25
mg
Volume Akhir Titrasi 12,9 mL 11,9 mL
1 mL NaNo2 0,1 N 17,319 mg Asam Sulfanilat
!1"
V 1 x N 1=ekuivalen as. sulfanilat
VNaNO2 x NNaNO2=massaas.sulfanilat
BE
12,9mL x [ NaNO2 ]=173,25mg
173,19
[ NaNO2 ]= 1,004
12,9mL=0,077 N
!2"
V 1 x N 1=ekuivalen as. sulfanilat
VNaNO2 x NNaNO2=massaas.sulfanilat
BE
11,9mL x [ NaNO2 ]=173,5mg
173,19
[ NaNO2 ]=0,084 N
!3"
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8/19/2019 hasil lapak nitrimetri
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´ x=0,077 N +0,084 N
2=0,080 N
Penetapan Kadar Sampel Parasetamol
1 2
Massa Sam#el 0,3032
gr
0,3023 gr
Volume Akhir Titrasi 5 mL $,$ mL
!1"
ek .1=ek .2
V 1 x N 1=ek 2
0,080 x5=massa parasetamol
BM (151,61)
massa parasetamol=0,4 x 151,61=60,644mg
Kadar PCT =massa parasetamol
massa sampel x 100
¿60,644 mg
303,2mg x100
¿20,001
!2"
ek .1=ek .2
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8/19/2019 hasil lapak nitrimetri
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V 1 x N 1=ek 2
0,080 x 4,4=massa parasetamol
BM (151,61)
massa parasetamol=0,352 x151,61=53,366mg
Kadar PCT =massa parasetamol
massa sampel x 100
¿53,366mg
302,3mg x 100
¿17,653
!3"
´ x=20,001 +17,653
2=18,827