Particle/Mole Conversions

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 x10²⁴ molecules

How many molecules are there in 31.8 moles of water?

• 5.28 x 10^-23 molecules
• 1.91 x 10²⁵ molecules
• 5.28x 10²⁵

• 1.91 x 10²²

How many atoms of iodine are present in a mole of iodine?

• 3.14

• 6.236 x 10²¹

• 2.998 x 10⁸

• 6.02 x 10²³

How many molecules of sugar (C₆H₁₂O₆) are in a mole?

• 3.14 6.236 x 10²¹

• 6.236 x 10²¹

• 2.998 x 10⁹

• 6.02 x 10²³

The number 6.02 x 10²³ is called...

• Newton's number

• Bohr's number
• Einstein's number

• Avogadro's number

How many moles are in 8.30 X 10²³ molecules of H₂O?

• 1.602 moles H₂O

• 1.38 moles H₂O

• 2 moles H₂O

• 1 mole H₂O

How many moles there are in 5.68 x 10²⁴ formula units of AlCl₃?

• 8.3 moles

• 2.2 moles

• 9.44 moles

• 3.42 moles

How many molecules are in 2.5 mol of NaCl?

• 1.51 x 10²³

• 146 x 10²³

• 4.15 x 10²⁴

• 1.51x10²⁴

How many molecules of sugar (C₆H₁₂O₆) are in a mole?

• 24 molecules
• 180 molecules
• 180 g
• 6.02 x 10²³ molecules

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

• 0.05 moles
• 1.81 x 10⁴⁶ moles
• 5.00 x 10²¹ moles
• 5 moles