\(n_{HCl}=0,6\cdot1=0,6\left(mol\right)\)
\(NaOH+HCl\rightarrow NaCl+H_2O\)
0,6 0,6
Để trung hòa: \(n_{H^+}=n_{OH^-}=n_{HCl}=0,6\left(mol\right)\)
\(\Rightarrow n_{NaOH}=n_{OH^-}=0,6\left(mol\right)\)
\(m_{ctNaOH}=0,6\cdot40=24\left(g\right)\)
\(m_{ddNaOH}=\dfrac{24}{30\%}\cdot100\%=80\left(g\right)\)
\(m_{NaCl}=0,6\cdot58,5=35,1\left(g\right)\)
n H C l = 0 , 6 ⋅ 1 = 0 , 6 ( m o l )
N a O H + H C l → N a C l + H 2 O
0,6 0,6
Để trung hòa: n H + = n O H − = n H C l = 0 , 6 ( m o l ) ⇒ n N a O H = n O H − = 0 , 6 ( m o l )
m c t N a O H = 0 , 6 ⋅ 40 = 24 ( g )
m d d N a O H = 24 30 % ⋅ 100 % = 80 ( g )
m N a C l = 0 , 6 ⋅ 58 , 5 = 35 , 1 ( g )
