150ml = 0,15l
\(n_{HCl}=2.0,15=0,3\left(mol\right)\)
Pt : \(Ba\left(OH\right)_2+2HCl\rightarrow BaCl_2+2H_2O|\)
1 2 1 2
0,15 0,3 0,15
a) \(n_{Ba\left(OH\right)2}=\dfrac{0,3.1}{2}=0,15\left(mol\right)\)
200ml = 0,2l
\(C_{MddBa\left(OH\right)2}=\dfrac{0,15}{0,2}=0,75\left(M\right)\)
b) \(n_{BaCl2}=\dfrac{0,3.1}{2}=0,15\left(mol\right)\)
\(V_{ddspu}=0,2+0,15=0,35\left(l\right)\)
\(C_{MBaCl2}=\dfrac{0,15}{0,35}=0,43\left(M\right)\)
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