Gravimetric methods can also be used for qualitative analysis.
Using double displacement precipitation reaction, the identity of group I metal M can be determined by analyzing an unknown Group 1 metal carbonate, M₂CO₃.
Double Displacement Precipitation Reaction – two compounds exchange ions, resulting in the formation of a precipitate that separates from the solution.
The metal is first precipitated as calcium carbonate.
After separation, drying and weighing, what was taken?
number of moles
When the mass of the unknown sample is divided by the obtained number of moles, what is the result?
