Answer to Question #182259 in General Chemistry for Homos

Question

Pricedure:

1. Using the hot water (containing 100 mL) and different substances (coffee powder, powdered juice, powdered milk, starch) stir the mixture in each container/pot by 10 rounds.

2. Observe the solubility of each substances.

3. Record your observation

Guide Questions:

1. Observation about the solubility of water and each substances.

a. Water and coffee powder

b. Water and powdered juice

c. Water and powdered milk

d. Water and starch

2. Using your observation, having a unique property of being a good solvent to ionic substance, why is it that water is a good solvent for polar and ionic substances?

Answer 1

Substances that dissolve into a solvent are called solutes, and the resulting mixture is a solution. Water is an excellent solvent because its polar water molecules form hydrogen bonds with ions and polar molecules, allowing ionic and polar covalent compounds to disperse easily in water.