Making Soluble Salts

The video tutorial explains the concept of salts, highlighting their solubility differences. It demonstrates two methods to form and isolate soluble salts: creating copper (II) sulfate through an acid-base reaction with sulfuric acid and copper (II) oxide, and forming sodium chloride via titration of hydrochloric acid with sodium hydroxide. The process of crystallization for both salts is detailed, emphasizing the differences in crystal structure and appearance. The tutorial concludes with a recap of the methods used to form soluble salts.

What is the primary difference between table salt and barium sulfate?

• Table salt is an insoluble salt, while barium sulfate is soluble.

• Table salt is a soluble salt, while barium sulfate is insoluble.

• Both are soluble salts.

• Both are insoluble salts.

What type of reaction occurs when copper (II) oxide reacts with sulfuric acid?

• Single displacement reaction

• Synthesis reaction

• Acid-base neutralization reaction

• Decomposition reaction

What is the color of copper (II) sulfate crystals formed in the reaction?

• Bright blue

• Red

• White

• Green

Which method is used to isolate copper (II) sulfate crystals from the solution?

• Distillation

• Filtration

• Decantation

• Evaporation and crystallization

What is the role of phenolphthalein in the titration process?

• It neutralizes the acid.

• It acts as a reactant.

• It indicates the endpoint by changing color.

• It speeds up the reaction.

What is the final appearance of sodium chloride crystals?

• Red and spherical shape

• Green and hexagonal shape

• White and cubic-like structure

• Bright blue and irregular rhombus shape

What type of reaction is involved in the formation of sodium chloride?

• Synthesis reaction

• Double displacement reaction

• Single displacement reaction

• Decomposition reaction