O cantitate de 15 g zink reactioneaza cu acidul colhidric! Calculeaza cate grame de zink si cate de Hidrogen! Multumesc

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31 Agustus 2025 chimie 5 minute
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O cantitate de 15 g zink reactioneaza cu acidul colhidric! Calculeaza cate grame de zink si cate de Hidrogen! Multumesc
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15 g                         x g                y g
Zn            + 2 HCl = H2             + ZnCl2
1 mol                       1 mol            1 mol
1*65=65 g               1*2*1=2 g     1*(65+2*35,5)=138 g

15/65=x/2=>3/13=x/2=>x=(3*2)/13=0,46 g H2

15/65=y/138=>3/13=y/138=>y=(3*138)/13=>y=414/13=>y=31,85 g ZnCl2
Răspunsul a fost dat în data 31 Agustus 2025

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