\(n_{AgNO3}=0,3\cdot1=0,3\) (mol)
nHCl =0,5 . 0,5= 0,25 (mol)
AgNO3 + HCl -----> \(AgCl\downarrow+HNO3\)
0,25<--- 0,25--->0,25---->0,25
=>\(n_{AgCl}=0,25\) (mol)
mAgCl =0,25 . 143,5=35,875(g)
b)\(m_{dd_{ }sau_{ }pứ}\)=300 +500=800(ml)
mHNO3 =0,25 . 63 =15,75(g)
C%HNO3= \(\dfrac{15,75}{800}\cdot100\%=1,96\%\)
nAgNO3 dư =0,3 - 0,25 =0,05 (mol)
mAgNO3 dư =0,05 . 143,5=7,175(g)
\(C_{\%AgNO3_{ }dư}\)=\(\dfrac{7,175}{800}\cdot100\%=0,897\%\)