100ml = 0,1l
\(n_{Ba\left(OH\right)2}=1.0,1=0,1\left(mol\right)\)
Pt : \(Ba\left(OH\right)_2+2HCl\rightarrow BaCl_2+2H_2O|\)
1 2 1 2
0,1 0,2 0,1
a) \(n_{HCl}=\dfrac{0,1.2}{1}=0,2\left(mol\right)\)
\(V_{ddHCl}=\dfrac{0,2}{0,5}=0,4\left(l\right)\)
b) \(n_{BaCl2}=\dfrac{0,2.1}{2}=0,1\left(mol\right)\)
⇒ \(m_{BaCl2}=0,1.208=20,8\left(g\right)\)
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\(Ba\left(OH\right)_2+2HCl\rightarrow BaCl_2+H_2O\)
1 2 1 1
0,1 0,2 0,1
a). \(100ml=0,1l\)
\(n_{Ba\left(OH\right)_2}=C_M.V=1.0,1=0,1\left(mol\right)\)
\(n_{HCl}=\dfrac{0,1.2}{1}=0,2\left(mol\right)\)
\(\Rightarrow V_{HCl}=n.22,4=0,2.22,4=4,48\left(l\right)\)
b). \(n_{BaCl_2}=\dfrac{0,2.1}{2}=0,1\left(mol\right)\)
\(\Rightarrow m_{BaCl_2}=n.M=0,1.208=20,8\left(g\right)\)