Bài 1 :
\(a) CaCO_3 \xrightarrow{t^o} CaO + CO_2\\ 2Fe(OH)_3 \xrightarrow{t^o} Fe_2O_3 + 3H_2O\\ b) CaCO_3 + 2HCl \to CaCl_2 + CO_2 + H_2O\\ 2Fe(OH)_3 + 6HCl \to 2FeCl_3 + 6H_2O\\ NaOH + HCl \to NaCl + H_2O\\ c) 2AgNO_3 + 2NaOH \to 2NaNO_3 + Ag_2O + H_2O\\ NaCl + AgNO_3 \to AgCl + NaNO_3\)
Bài 2 :
\(a)2AgNO_3 + BaCl_2 \to 2AgCl + Ba(NO_3)_2\\ n_{AgCl} = n_{AgNO_3} = 0,2.1 = 0,2(mol)\\ \Rightarrow m_{AgCl} = 0,2.143,5 = 28,7(gam)\\ b) n_{BaCl_2} = \dfrac{1}{2}n_{AgNO_3} = 0,1(mol)\\ V_{dd\ BaCl_2} = \dfrac{0,1}{2} = 0,05(lít)\)
\(1.\)
\(a.\)
\(CaCO_3\underrightarrow{t^0}CaO+CO_2\)
\(2Fe\left(OH\right)_3\underrightarrow{t^0}Fe_2O_3+3H_2O\)
\(b.\)
\(CaCO_3+2HCl\rightarrow CaCl_2+CO_2+H_2O\)
\(Fe\left(OH\right)_3+3HCl\rightarrow FeCl_3+3H_2O\)
\(NaOH+HCl\rightarrow NaCl+H_2O\)
\(c.\)
\(2NaOH+2AgNO_3\rightarrow2NaNO_3+Ag_2O+H_2O\)
\(NaCl+AgNO_3\rightarrow AgCl+NaNO_3\)
\(2.\)
\(n_{AgNO_3}=0.2\cdot1=0.2\left(mol\right)\)
\(BaCl_2+2AgNO_3\rightarrow AgCl+Ba\left(NO_3\right)_2\)
\(0.1............0.2............0.1\)
\(m_{AgCl}=0.1\cdot143.5=14.35\left(g\right)\)
\(V_{dd_{BaCl_2}}=\dfrac{0.1}{2}=0.05\left(l\right)\)
