Exploring the Concept of Mole and Avogadro's Number

What is the value of Avogadro's number?

• 9.81 times 10 raised to 23

• 1.602 times 10 raised to 19

• 6.022 times 10 raised to 23

• 3.14 times 10 raised to 23

What does one mole of any substance contain?

• The same number of molecules as in 12 grams of Carbon-12

• The same number of molecules as in 1 gram of Carbon-12

• The same number of atoms as in 12 grams of Carbon-12

• The same number of atoms as in 1 gram of Carbon-12

What is the standard used to define a mole?

• 1 gram of Carbon-12

• 12 grams of Hydrogen

• 12 grams of Carbon-12

• 1 gram of Hydrogen

How many atoms are there in one mole of pure gold?

• 1.602 times 10 raised to 19

• 6.022 times 10 raised to 23

• 3.14 times 10 raised to 23

• 9.81 times 10 raised to 23

How many molecules are there in one mole of pure water?

• 9.81 times 10 raised to 23

• 1.602 times 10 raised to 19

• 6.022 times 10 raised to 23

• 3.14 times 10 raised to 23

Who introduced the concept of Avogadro's number?

• Albert Einstein

• Dmitri Mendeleev

• Lorenzo Romano Amedeo Carlo Avogadro

• Isaac Newton

What is Avogadro's number used to represent?

• The number of electrons in 1 mole of any substance

• The number of atoms in 1 gram of any substance

• The number of molecules in 1 gram of any substance

• The number of particles in 1 mole of any substance

What is the mass of one mole of pure gold?

• 1 gram

• 196.97 grams

• 12 grams

• 18.015 grams

What is the mass of one mole of pure water?

• 12 grams

• 18.015 grams

• 196.97 grams

• 1 gram

Why is the mass of one mole of different substances different?

• Because the volume of the substances is different

• Because the mass of individual atoms is different

• Because the number of molecules is different

• Because the number of atoms is different

Tags

NGSS.HS-PS1-7