Mole Conversions

How many molecules are in 2.5 mol of NaCl?

• 1.51x10²³
• 146
• 4.15
• 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 atoms of carbon are in 6.00g of carbon?

• 1.20x10²⁴atoms C
• 6.02x10²³atoms C
• 3.01x10²³atoms C
• 1.50x10²³atoms C

How many grams are in 1.2 x 10²⁴ molecules of CO?

• 28 grams
• 56 grams
• 6.02 grams
• 1.2 grams

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

What is the mass of one mole of silver?

• 32.06 g

• 107.87 g

• 14.01 g

• 22.99 g

How many molecules of water are in a 821.3 g sample?

• 45.58 molecules

• 8.232 x 10²⁵ molecules

• 8.909 x 10²⁷ molecules

• 2.744 x 10²⁵ molecules

What is the mass of 4.98 x 10²⁴ atoms of Zn?

• 541 g

• 8.27 g

• .122 g

• 4.59 x 10⁴⁶ g

A sample of AlCl₃ contains a total of 4.515 x 10²⁷ atoms of chlorine. What must be the mass of this sample?

• 2.500 x 10⁵ g

• 1.000 x 10⁶ g

• 18.75 g

• 3.333 x 10⁵ g

How many molecules are in 9.44 moles of AlCl₃?

• 5.68 molec AlCl₃
• 5.68x10²⁴ molec AlCl₃
• 0.705 molec AlCl₃
• 1.25x10²³ molec AlCl₃