Gravimetrija

Submitted by miina123456 on Fri, 01/24/2014 - 11:28
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Gravimetrijskom analizom  1,3500 g neke rude željeza dobijeno je 0,2300 g taloga.
Izračunati maseni udio željeza u ispitivanoj rudi ? Postupak?

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milicaradenkovic - Fri, 01/24/2014 - 15:31

m(rude)=1.3500

m(taloga)=0.2300 g

w(Fe)=m(Fe)/m(rude)

m(Fe)=m(taloga)=0.2300 g

w(Fe)=0.2300/1.3500=0.17=17 %

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miina123456 - Fri, 01/24/2014 - 15:44

Hvala Milice