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HCl --> H+ + Cl
na= 1
Va= 10 mL
Ca(OH)2 --> Ca+ + 2OH-
nb= 2
Vb= 20mL
Mb= 0,1 M
dit:
Ma= ?
na.Ma.Va = nb.Mb.Vb
1.Ma.10 = 2.0,1.20
10Ma = 4
Ma= 4/10 = 0,4 M