Mole Conversions

What is the mass of 2.75 moles of silver (Ag) ?

• 1.66 x 10²⁴ g

• 296 g

• 0.0255 g

• 4.57 x 10^-24 g

How many moles would a 3.9 g sample of calcium (Ca) contain?

• 156 moles

• 2.35 x 10²⁴ moles

• 6.48 x 10^-24 moles

• 0.097 moles

What is the mass of 3.5 moles NaOH ?

• 0.0250 g

• 140. g

• 5.81 x 10^-24 g

• 2.11 x 10²⁴ g

Tags

NGSS.HS-PS1-7

How many formula units (particles) would be found in a 2.1 mol sample of AlPO₄ ?

• 1.26 x 10²⁴ formula units

• 3.49 x 10^-24 formula units

• 256 formula units

• 0.0172 formula units

A 8.92 x 10²⁵ atom sample of Na has how many moles in it?

• 5.36 x 10⁴⁹ moles

• 2.05 x 10²⁷ moles

• 147 moles

• 3.87 moles

Tags

NGSS.HS-PS1-7

How many moles would be found in a 1.22 x 10⁴ formula unit (particle) sample of K₂O ?

• 2.03 x 10^-20 moles

• 7.34 x 10²⁷ moles

• 1.15 x 10⁶ moles

• 130. moles