\(\text{2K + 2H2O }\rightarrow\text{2KOH + H2}\)
0,2__________0,2________0,1
\(\text{KOH + HCl}\rightarrow\text{KCl + H2O}\)
0,2_____0,2___________0,2
nKCl= \(\frac{14,8}{74,5}\)= 0,2 (mol)
\(\rightarrow\)mK= 0,2 .39= 7,8 (g)
\(\rightarrow\)VH2= 0,1.22,4= 2,24 (l)
VHCl=\(\frac{0,2}{0,5}\)=0,4M