\(n_{CaCO3}=\frac{10}{100}=0,1\left(mol\right)\)
a) \(CaCO_3+2HCl\rightarrow CaCl_2+H_2O+CO_2\uparrow\)
0,1_________0,2___0,1__________0,1
b) \(V_{CO2}=0,1.22,4=2,24\left(l\right)\)
c) \(C\%=\frac{m_{Ct}}{m_{dd}}.100\%\Leftrightarrow7,5\%=\frac{0,2.36,5}{m_{dd}}.100\%\)
\(\Rightarrow m_{dd\left(HCl\right)}=97,33\left(g\right)\)
\(\Rightarrow m_{dd}=10+97,33-0,1.44=102,93\left(g\right)\)
\(m_{CaCl2}=0,1.\left(40+35,5.2\right)=11,1\left(g\right)\)
\(\Rightarrow C\%=\frac{11,1}{102.93}.100\%=10,78\%\)
