Page 12 - C_Asas Black_Salsabilla Maharani_K2321063
P. 12
Alumin
3 i um 21,3 85,7 83,2 990 28 30 1 0,2160 0,09 0,162 0,23%
0 2
H. Analisis Hasil
1. Analisis kuantitatif
Kalorimeter
=
= . .∆ − . .∆
.∆
. ( − ) − . . ( − )
=
. ( − )
69,1×1×(83−51)−106,8×1×(51−28)
=
83,2×(51−28)
2.211,2−2.456,4 °
= | | = 0,128 /
1.913,6
Kesalahan relatif
= | − | × 100% = |0,128−0,216| × 100% =
0,216
0,407%
A. Besi
=
. . ∆ = . . ∆ +
. .∆
= . .∆ + . .∆
.∆
= . ( − )+ . .( − )
.( − )
85,7 × 1 × (32 − 28) + 83,2 × 0,216 × (32 − 28)
=
59 × (85 − 32)
= 0,132 /
°
Kesalahan relatif
