2. Atoms & Elements

Determine the number of moles of aluminum in 96.7 g of Al.

How many sulfur atoms are present in 3 moles of sulfur?

What is the mass in grams of 1.900×10²⁴ iodine atoms?

How many moles of Kr are contained in 398 mg of Kr?

How many molecules are in 3.6 grams of NaCl?

What is the mass in grams of 5.40 moles of lithium?

How many molecules of N₂O₄ are in 76.3 g N₂O₄?

How many moles of propylene (C₃H₆) are in 25.0 g?

How many moles of water, H₂O, contain 2.0×10²² molecules of water?

What mass (in mg) does 2.63 moles of Nickel have?

In a classroom, which comparison would a teacher most likely use to describe a mole?

Which statement best explains the purpose of using a mole in the measurement of matter?