\(a.n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\\ a.Ca\left(OH\right)_2+CO_2\rightarrow CaCO_3+H_2O\\ 0,25.......0,25............0,25..........0,25\left(mol\right)\\ C_{MddCa\left(OH\right)_2}=\dfrac{0,25}{0,1}=2,5\left(M\right)\\ b.m_{\downarrow}=m_{CaCO_3}=100.0,25=25\left(g\right)\)

a, \(n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)

PTHH: CO₂ + Ca(OH)₂ → CaCO₃ ↓  +  H₂O

Mol:     0,25      0,25            0,25 

  \(C_{M_{ddCa\left(OH\right)_2}}=\dfrac{0,25}{0,1}=2,5M\)

b, \(m_{CaCO_3}=0,25.100=25\left(g\right)\)

c, 

PTHH: Ca(OH)₂ + 2HCl → CaCl₂ + 2H₂O

Mol:       0,25           0,5

\(m_{ddHCl}=\dfrac{0,5.36,5.100}{20}=91,25\left(g\right)\)

a/ PTHH: CO₂ + Ca(OH)₂ ===> CaCO₃+ H₂O

n_CO2 = 2,24 / 22,4 = 0,1 mol

=> n_Ca(OH)2 = nCaCO3 = nCO2 = 0,1 mol

=> C_M(CaOH)2 = 0,1 / 0,2 = 0,5M

b/ => m_CaCO3 = 0,1 x 100 = 10 gam

a, \(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3+H_2O\)

b, \(n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)

\(n_{Ca\left(OH\right)_2}=n_{CO_2}=0,25\left(mol\right)\Rightarrow C_{M_{Ca\left(OH\right)_2}}=\dfrac{0,25}{0,2}=1,25\left(M\right)\)

c, \(Ca\left(OH\right)_2+2HCl\rightarrow CaCl_2+2H_2O\)

Theo PT: \(n_{HCl}=2n_{Ca\left(OH\right)_2}=0,5\left(mol\right)\)

\(\Rightarrow m_{ddHCl}=\dfrac{0,5.36,5}{15\%}\approx121,67\left(g\right)\)

\(n_{CO_2}=\dfrac{5,6}{22,4}=0,25mol\\ a)CO_2+Ca\left(OH\right)_2\rightarrow Ca\left(OH\right)_2+H_2O\)

    0,25       0,25                0,25

\(b)C_{M_{Ca\left(OH\right)_2}}=\dfrac{0,25}{0,2}=1,25M\\ c)2HCl+Ca\left(OH\right)_2\rightarrow CaCl_2+2H_2O\\ n_{HCl}=2n_{Ca\left(OH\right)_2}=2.0,25=0,5mol\\ m_{ddHCl}=\dfrac{0,5.36,5}{15\%}\cdot100\%\approx121,67g\)

\(n_{HCl}=0,1.0,2=0,02\left(mol\right)\)

Pt : \(2HCl+Ca\left(OH\right)_2\rightarrow CaCl_2+2H_2O\)

       0,02---->0,01---------->0,01

a) Nồng độ mol đề cho rồi mà nhỉ 

b) \(m_{muôi}=m_{CaCl2}=0,01.111=1,11\left(g\right)\)

\(a)CO_2+Ba\left(OH\right)_2\rightarrow BaCO_3+H_2O\\ b)n_{CO_2}=\dfrac{7,437}{24,79}=0,3mol\\ n_{Ba\left(OH\right)_2}=n_{BaCO_3}=0,3mol\\ C_{M_{Ba\left(OH\right)_2}}=\dfrac{0,3}{0,6}=0,5M\\ c)m_{BaCO_3}=0,3.197=59,1g\)

\(n_{CO_2}=\dfrac{5,6}{22,4}=0,25\left(mol\right)\)

PT: \(CO_2+Ca\left(OH\right)_2\rightarrow CaCO_3+H_2O\)

Theo PT:  \(n_{Ca\left(OH\right)_2}=n_{CaCO_3}=n_{CO_2}=0,25\left(mol\right)\)

a, \(C_{M_{Ca\left(OH\right)_2}}=\dfrac{0,25}{0,1}=2,5\left(M\right)\)

b, \(m_{CaCO_3}=0,25.100=25\left(g\right)\)

c, \(Ca\left(OH\right)_2+2HCl\rightarrow CaCl_2+2H_2O\)

Theo PT: \(n_{HCl}=2n_{Ca\left(OH\right)_2}=0,5\left(mol\right)\)

\(\Rightarrow m_{ddHCl}=\dfrac{0,5.36,5}{20\%}=91,25\left(g\right)\)

Cảm ơn nha

\(a.n_{CO_2}=\dfrac{2,24}{22,4}=0,1\left(mol\right)\\ CO_2+Ba\left(OH\right)_2\rightarrow BaCO_3+H_2O\\ 0,1...........0,1.............0,1..........0,1\left(mol\right)\\ b.m_{kt}=m_{BaCO_3}=0,1.197=19,7\left(g\right)\\ c.C_{MddBa\left(OH\right)_2}=\dfrac{0,1}{0,2}=0,5\left(M\right)\)