Question

DAU COROANA !!!!!!!!!!!500 de puncte Problema la Chimie(problema 7)

Answer 1

Răspuns:

7.

3×56g.......78g.........3×74,5g

AlCl3 + 3KOH → Al(OH)3 + 3KCl

11,2g.........xg............yg

MAl(OH)3=27+3×16+3×1==78g/mol

MKOH =39+16+1=56g/mol

MKCl=39+35,5=74,5g/mol

x=11,2+78/3×56=calculează

y=11,2×3×74,5/3×56=calculează