BT kim loai kiem, kiem tho kho day.

T

taiphong

ta co H2 do HCL gay ra la 0.15 mol
H2O gay ra la 0.1 mol \Rightarrow OH- la 0.2 mol \Rightarrow CO2 la 0.1
gia su hh chi co klkX \Rightarrow X=21.2 \Rightarrow Na
gia su hh chi co klktY \Rightarrow Y=42.4 \Rightarrow Ca
sau khi giai hpt ta co [TEX]n_{Na}=0.2,n_{Ca}=0.15[/TEX]
VAy kl ket tua lon nhat la 10 g
 
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