lampiran perhitungan vitamin
DESCRIPTION
cara hitung kadar vitaminTRANSCRIPT
LAMPIRAN PERHITUNGAN
Rumus
Kadar Vit C = mLtitrasi x 0,88mg x100mLgsampel x mL sampling = A
mgVit Cgbahan
Rata−Rata=Ulangan1+Ulangan2+Ulangan33
1. Kadar Vitamin C pada Jeruk
Ulangan1
5,2mLx 0,88mg x 100mL15 g x25mL
=457,6mL375
¿1,2203mg /g
Ulangan 2
5,1mLx 0,88mg x 100mL15 g x25mL
=448,8mL375
¿1,1968mg /g
Ulangan 3
5mL x0,88mg x100mL15 g x25mL
=440mL375
¿1,1733mg /g
JERUK 2
Ulangan 1
2,5mLx0,88mg x100mL15 g x25mL
=220mL375
¿0,5867mg / g
Ulangan 2
2,2mLx 0,88mg x 100mL15 g x25mL
=193,6mL375
¿0,5163mg / g
Ulangan 3
2,4mL x 0,88mgx100mL15 g x25mL
=211,2mL375
¿0,5632mg /g
Rata−Rata=1 ,2203 mg
g+1,1968 mg
g+1,1733 mg
g+0,5867 mg
g+0,5163 mg
g+0,5632 mg
g6
=0,8761mg / g
SD = √∑ (xi−x )n−1
= √(1,2203−0,8761)2+¿¿¿
= 0,3524
RSD = SDxx 100 %
=0,352 40,8761
x 100 %
= 40,2202 %
2. Kadar Vitamin C pada tomat
Ulangan1
5 ,5mL x 0,88mg x 100mL15 g x25mL
=484mL375
¿1,2907mg / g
Ulangan 2
4,6mL x 0,88mg x 100mL15g x25mL
=404,8mL375
¿1,0795mg /g
Ulangan 3
5,3mL x0,88mg x100mL15 g x25mL
=466,4mL375
¿1,2437mg / g
TOMAT 2
Ulangan 1
2,5mLx0,88mg x100mL15 g x25mL
=220mL375
¿0,5867mg / g
Ulangan 2
2,6mL x0,88mg x100mL15 g x25mL
=228,8mL375
¿0,6101mg /g
Ulangan 3
2,7mLx0,88mg x100mL15 g x25mL
=237,6mL375
¿0,6336mg / g
Rata−Rata=1,2907mg
g+1,0795mg
g+1,2437mg
g+0,5867 mg
g+0,6101mg
g+0,6336 mg
g3
=0,9074mg /g
SD = √∑ (xi−x )n−1
=
√ (1,2907−0,9074)2+(1,0795−0,9074)2+(1,2437−0,9074)2+(0,5867−0,9074)2+(0,6101−0,9074)2 +(0,6336−0,9074)2
6−1
= 0,3334
RSD = SDxx 100 %
=0,33 340,9074
x 100 %
= 36,7448%
