Salts , gases , ions

Question 1

solubility of salts

Answer 1

1 SCAN
sulfates except = Calcium Lead Barium
chloride except = Lead and Silver

Question 2

how to prepare insoluble slats

Answer 2

• precipitation
• mix 2 aqueous solution , 1 containing cation and the other containing anion of the salt
• mix it and filtrate after that wash with distilled water

Question 3

how to prepare soluble salts

acid + insoluble ___

Answer 3

• react acid with insoluble solid ( metal , carbonate or base)
• add excess solid reactant to aqueous acid
• acid + insoluble carbonate = salt + CO2+H20
• acid + insoluble base = salt + H2O

Question 4

how to prepare soluble salts part 2

Answer 4

• react acid with soluble reactant using titration
• acid + alkali= salt + H2O
• acid + soluble carbonate = salt + CO2 + H2O

HAVE TO USE EXCAT QUANTITIES TO AVOID CONTAMINATING