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Demirin Fe2O3 olarak gravimetrik tayini Demir ieren bir numune, sulu oksidin bazik zeltiden keltilmesi ve ardndan Fe2O3'e atelenmesiyle analiz edilebilir: Fe 3+ + (2+x)H 2

Demirin Fe2O3 olarak gravimetrik tayini

Demir ieren bir numune, sulu oksidin bazik zeltiden keltilmesi ve ardndan Fe2O3'e atelenmesiyle analiz edilebilir:

Fe 3+ + (2+x)H 2 O ----> FeOOH* xH 2 O(k) + 3H +

FeOOH * xH 2 O ------> Fe 2 O 3 (s)

~0.3g Fe2O3 retmeye yetecek kadar Fe ieren bilinmeyen numuneyi tartn

benim denememde

bilinmeyen numune arl: 0,75g 0,80 0,70

Bilinmeyenden toplanan Fe 2 O 3 : 0,05g 0,04g 0,03g

bilinmeyen numunede (1)% Fe'yi nasl hesaplarm

(2) ortalama % Fe

(3)standart sapma

(4) bal standart sapma

Bilinmeyen numunede (1) % Fe belirle

(2)ortalama % Fe

(3)standart sapma

(4)bal standart sapma

Demirin Fe2O3 olarak gravimetrik tayini iin nasl hesaplarm?

~0.3g Fe2O3 (~0.6 - 1 g bilinmeyen) retmek iin Fe ieren bilinmeyenin tartlm numunesi

Bilinmeyen numuneden 0,75 gr aldm.

Bilinmeyenden toplanan Fe2O3'ten 0.05g aldm.

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