Answer to Question #101607 in General Chemistry for Dalha Aisha

Question

Excess concentrated hydrochloric acid was added to 2.0 of potassium tetra oxo manganette (vii) and chlorine gas was evolved and collected as stp the equation is below
2kmno4+16Hcl =2 kcl+ 2mncl2 +8h2O+ 5 cl2

Answer 1

n(KMnO₄)=2.0/158,03=0.01265 mol

n(Cl₂)=2.5(0.01265)=0.031625 mol

V(Cl₂)=22.4(0.031625)=0.7084 l

Answer: V(Cl2)=0.7084 l