Moles to Atoms

How many molecules are there in 5.9 moles of NaCl?

• 3.5x10²⁴ molecules

• 9.80x10^-24 molecules

• 1.02x10²³ molecules

• 6.02x10²³ molecules

Tags

NGSS.HS-PS1-7

Avogadro's Constant, L, always refers to....

• The number of particles in one mole

• The number of moles in one gram

• The number of atoms in one mole

• The atomic mass of each element

• The number of molecules in one mole

How many moles are in 3.01 x 10²² atoms of magnesium?

• 0.0500 moles

• 1.81 x 10⁴⁶ moles

• 5.00 x 10²¹ moles

• 5.00 moles

How many molecules are in 2.5 mol of NaCl?

• 1.50 x10²⁴ molecules

• 1.50 molecules

• 4.15 molecules

• 1.51 x10²⁴ molecules

Calculate the number of atoms in 0.0340 g Zn.

• 5.200 x 10^-4 atoms Zn

• 3.130 x 10²³ atoms Zn

• 3.130 x 10²⁰ atoms Zn

• 1 atom Zn

Tags

NGSS.HS-PS1-7

Which of the following statements regarding the mole is INCORRECT?

• A mole is a unit of quantity equal to 6.02 x 10²³ particles.

• The number of particles in a mole is known as Avogadro’s number.

• A mole of particles of an element is numerically equal to the atomic mass of the element.

• none of the above

Tags

NGSS.HS-PS1-7

How many formula units are in 2.5 moles of NaCl?

• 1.5 x10²⁴ formula units

• 1.5 formula units

• 4.2 formula units

• 4.2 x10^-24 molecules

How many atoms are there in 2.0 moles of carbon?

If you have 4.5 moles of hydrogen gas, how many atoms of hydrogen do you have?

What is the number of atoms in 0.75 moles of sulfur?