Sci9 Mole Concept

The following are representative particles of matter. Which among them represents a covalent compound?

• atom
• ion
• molecule
• particle unit

How many particles are equal to 1 mole?

• 6.02 x 10 ^{23 _particles}
• 6.02 x 10 ²² particles
• 6.02 x10²⁴ particles
• 6.02 x 10 ²⁵ particles

What do you expect to observe in a "Mole Exhibit of Different Substances"?

• different kind of elements
• different colors of substances
• showcase of 1 mole of different elements having different masses
• showcase of 1 mole of different substances having the same masses

Which of the following units in expressing the amount of substance in terms of the number of particles?

• liter
• gram
• mole
• Celcius

How can you apply knowledge on percentage composition?

• In maintaining the quality of food product
• In checking the amount of sugar present in the softdrink
• In identifying the correct amount of substance present in a sample
• All of the above

The label of the dark chocolate indicates that its mass is 100 g and it is 70% Cacao. If you consume the whole chocolate bar, how much cacao did you eat?

• 60 g cacao
• 70 g cacao
• 100 g cacao
• 150 g cacao