\(2CH_3COOH+CaCO_3--->(CH_3CHH)_2Ca+CO_2 +H_2O\)
Khí thoát ra là khí CO2
\(nCO_2(đktc)=\dfrac{2,24}{22,4}=0,1(mol)\)
\(a)\)
Theo PTHH, \(nCaCO_3=0,1(mol)\)
\(=>mCaCO_3=0,1.100=10(g)\)
\(b)\)
Theo PTHH: \(nCH_3COOH=0,1(mol)\)
\(=>mCH_3COOH=0,1.60=6(g)\)
\(=>C\%CH_3COOH=\dfrac{6.100}{96}=6,25\%\)
\(c)\)
Dung dich sau phản ứng là \((CH_3COO)_2Ca\)
Theo PTHH: \(n(CH_3COO)_2Ca=0,1(mol)\)
\(=>m(CH_3COO)_2Ca=0,1.158=15,8(g)\)
Theo PTHH: \(nCO_2=0,1(mol)\)
\(=>mCO_2=0,1.44=4,4(g)\)
\(m_{ddsau}=10+96-4,4=101,6\left(g\right)\)
\(=>C\%\left(CH_3COO\right)_2Ca=\dfrac{15,8.100}{101,6}=15,55\%\)