Salt Preparation - Lesson 3 Flashcards
Magnesium + Sulfuric Acid —>
Magnesium Sulfate + Hydrogen
Zinc + Nitric Acid —>
Zinc Nitrate + Hydrogen
When making salts using metal oxide and acid what is the equation we use?
Metal Oxide + Acid —-> Salt + Water
Copper Oxide + Sulfuric Acid —->
Copper Sulfate + Water
Calcium Oxide + Hydrochloric Acid —->
Calcium Chloride + Water
What is the first step when making copper sulfate crystals?
Pour the copper oxide powder ito the sulfuric acid .
What is the second step when making copper sulfate crystals?
Filter the solution through a funnel into a conical flask to make copper sulfate.
What is the third step when making copper sulfate crystals?
Heat the solution to the crystallization point.
What is the fourth step when making copper sulfate crystals?
Leave it to cool.
What is the fifth step when making copper sulfate crystals?
Filter
What is the sixth step when making copper sulfate crystals?
Dry the crystals.
What is the colour of sulfuric acid?
Sulfuric Acid is colourless.
Write two observations when copper oxide reacts with sulphuric acid.
- The solution truns form colourless to blue.
- The black colour solid (copper) dissolves.
- It starts to boil once the reaction begins.
State the colour of copper oxide.
Black
State the colour of copper sulfate.
Blue
Can we produce copper sulfate willingly method of metal + acid? Explain your answer.
We cannot produce copper sulfate using the metal + acid method because copper is one of the five metals that does not react with acid.
What are the 5 Metals that cannot react with Acid?
Mercury
Silver
Copper
Gold
Platinum
Metal Oxide + Acid —->
Salt + Water
