Răspuns:
ms=600g
C=36,5%
md=Cxms/100=36,5x600/100=219g HCl
MHCl=1+35,5=36,5g/mol
MCaCO3=40+12+3x16=100g/mol
100g..........2x36,5g
CaCO3 + 2 HCl → CaCl2 + CO2↑+ H2O
yg.............219g
y=219x100/2x36,5=300gCaCO3
Explicație:
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Răspuns:
ms=600g
C=36,5%
md=Cxms/100=36,5x600/100=219g HCl
MHCl=1+35,5=36,5g/mol
MCaCO3=40+12+3x16=100g/mol
100g..........2x36,5g
CaCO3 + 2 HCl → CaCl2 + CO2↑+ H2O
yg.............219g
y=219x100/2x36,5=300gCaCO3
Explicație: