PTHH: \(2KOH\left(0,36\right)+H_2SO_4\left(0,18\right)\rightarrow K_2SO_4\left(0,18\right)+2H_2O\)
\(m_{H_2SO_4}=200.0,09=18\left(g\right)\Rightarrow n_{H_2SO_4}=\dfrac{18}{98}\approx0,18\left(mol\right)\)
a) \(V_{ddKOH}=\dfrac{0,36}{2}=0,18l\)
b) \(m_{K_2SO_4}=0,18.174=31,32\left(g\right)\)
\(m_{ddKOH}=1,12.0,18=0,2016\left(g\right)\)
c) \(m_{ddsaupư}=m_{ddH_2SO_4}+m_{ddKOH}=200+0,2016=200,2016\left(g\right)\)
\(\Rightarrow C\%ddK_2SO_4=\dfrac{31,32}{200,2016}.100\%\approx15,64\%\%\)
mấy anh/chị được tag làm giúp e vs ạ, em cần gấp