Soluble and Insoluble

for soluble and insoluble salts

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PREPARATION OF SALTS

SOLUBLE SALTS

definition of salts

Salts is compound when an acid has lost its hydrogen (H+) ion and replaced by the cation from the base

soluble and insoluble salts

Multiple Select

check the following soluble salts

• magnesium sulfates

• lead chloride

• calcium sulfate

• ammonium carbonate

Multiple Choice

silver chloride

• soluble salts

• insoluble salts

Multiple Select

check the insoluble salts

• silver bromide

• lead sulfate

• potassium chloride

• copper(II) carbonates

Multiple Choice

sodium phosphate

• soluble salt

• insoluble salt

Multiple Choice

iron(II) phosphate

• soluble salt

• insoluble salt

​reacting acids and soluble base by titration

​reacting acid with excess metals, insoluble bases, insoluble carbonates

how to prepare soluble salts

Addition of excess metal to acid

1. it is workable for salts of magnesium, aluminum, zinc, and iron.

2. not for highly reactive metal salts such as Na or K OR unreactive metal salt (Cu or Ag or Au or Pb)

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excess metal and acid

metal like lead reacts so slow with acid; unreactive metals like trio coin metals (Cu, Ag, Au) do not react at all with acid

reactive metal, such as Na or K, upon addition to water, there will be huge explosion

Addition of excess insoluble base or insoluble carbonate to acid

Addition of excess soluble base or soluble carbonate to acid (titration)

​by precipitation

addition of two soluble substance to produce precipitate

how to prepare insoluble salts

Multiple Select

what is the best method to prepare calcium nitrate?

you may tick more than one answer if applied

• reacting excess calcium metal to nitric acid

• reacting excess calcium oxide/calcium carbonate to nitric acid

• reacting calcium hydroxide to nitric acid by titration

Multiple Select

what is the best method to prepare iron(II) chloride?

you may tick more than one answer if applied

• reacting excess iron metal to hydrochloric acid

• reacting excess iron(II) oxide/iron(II) carbonate to hydrochloric acid

• reacting iron(II) hydroxide to hydrochloric acid by titration

Multiple Select

what is the best method to prepare barium sulfate?

you may tick more than one answer if applied

• reacting excess barium metal to sulfuric acid

• reacting excess barium oxide/barium carbonate to sulfuric acid

• reacting barium hydroxide to sulfuric acid by titration

• reacting barium nitrate to sulfuric acid by precipitation

Multiple Select

what is the best method to prepare aluminum sulfate?

you may tick more than one answer if applied

• reacting excess aluminum metal to sulfuric acid

• reacting excess aluminum oxide/aluminium carbonate to sulfuric acid

• reacting aluminum hydroxide to sulfuric acid by titration