2. Atoms & Elements

How many atoms of carbon are present in 0.68 moles of carbon?

In which of the following situations is the mole concept most likely to be used?

How many moles are present in 3.01 × 10^{23} molecules of H_2O?

Which of the following masses represents 0.500 mol of NaCl?

How many atoms are present in 3 moles of carbon?

How many atoms are present in one mole of any element?

How many moles of KNO3 are present in 500.0 mL of a 2.0 M KNO3 solution?

How many moles of solute are present in 2000 mL of a 1 M solution?

Which of the following best defines a mole in chemistry?

How many moles of ethane (C_2H_6) are present in 30 grams of ethane?

Which value represents the number of particles in 1 mol of a substance?

How many moles of carbon atoms are present in 1 mole of carbon dioxide (CO_2)?

How many molecules of nitrogen monoxide (NO) are present in a 22.5 g sample?

Which of the following samples contains the greatest number of moles of atoms?

If you have 2 moles of Li, how many atoms of lithium do you have?