Question

Consider mixing 25.00 mL of 0.0200 M of each of the following of solutions. In which of the following will a precipitate form: Na2SO4 mixed with Ba(NO3)2 NH4Cl mixed with Mg(NO3)2 KF mixed with Ba(NO3)2 MgCl2 mixed with Na2CO3

Answer 1

1st, 3rd and 4th.

Step-by-step explanation:

There are few salts which have so much large atomic or molecular radii that the intermolecular forces of solvent are unable to get them separated.

Sodium sulphate (Na2SO4) solution is when mixed with Ba(NO3)2, BaSO4 precipitates out having white color.

Ammonium chloride (NH4Cl) solution when mixed with Magnesium Nitrate (Mg(NO3)2) solution, no precipitates are formed and this is a reversible reaction.

Potassium floride (KF) solution when mixed with Barium Nitrate (Ba(NO3)2) solution, BaF2 precipitates out having white color.

Magnesium chloride (MgCl2) solution is when mixed with Sodium carbonate (Na2CO3) solution, MgCO3 precipitates out having white color.