anion quiz review

Ag + CO3

2Ag + CO3 → Ag2CO3

CO3 + H

CO3 + 2H → H2CO3 (equil) CO2 + H2O

SO3 + MnO4 + H

5SO3 + 2MnO4 + 6H → 5SO4 (2-) + 2Mn (2+) + 3H2O

Br + MnO4 + H

10 Br + 2 MnO4 + 16H → 5Br2 + 2Mn (2+) + 8H2O

I + SO4

2I + SO4 + 4H → I2 + SO2 + 2H2O

HPO4 vs Br

Ba(NO3)2 → HPO4 forms a precipitate while Br- doesn’t
KMnO4 → HPO4 doesnt react with MnO4 while Br- gives a reddish yellow solution and a reddish brown solution after extracted with cyclohexane

SO3 vs SO4

KMnO4 → SO3 will react and change from purple to colorless while SO4 does not react
pH Paper → SO3 is basic and turns blue while SO4 is neutral

Ba(NO3)2 & HCl → SO3 dissolves while SO4 is not soluble

Cl vs I

KMnO4 → Cl doesnt react while I gives a brown solution which turns purple after being extracted with cyclohexane

CO3 vs SO3

KMnO4 → SO3 will change from purple to colorless while CO3 will bubble and remain purple

unknown anion reacted w MnO4 and gave a pale yellow solution and turned reddish brown after extracting it with cyclohexane. what is the anion?

Br-

Cl, Br, I

Ba(NO3)2 → no reaction

I-

KMnO4 → purple disappears, halogen appears, extract w cyclohexane, purple

Ba(NO3)2 → no reaction

H2SO4 + Solid → no bubbles, purple vapor

colors

KMnO4 → I is purple, Br is yellow

H2SO4 + solid → I is purple, Br is red-brown

AgNO3 → Cl, So3, Co3 are white, Br and I are cream, PO3 is yellow