1. How many moles are there in 24.0 grams of FeF₃?

1. How many grams are there in 7.40 moles of AgNO₃?

1. How many moles are present in1.29 x 10²⁴ hydrogen atoms in HF

1. How many atoms are present in the following?
   1. Hydrogen atoms in 3.14 moles of H₂O

1. Nitrogen atoms in 2.79 moles of NH₃

1. How many atoms are in a 3.56 g sample of Cu? Is this a mole of Cu?

1. How many grams of CaCO₃ are present in a sample if there are 4.52 x 10²⁴ atoms of carbon in that sample?

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