Grams to Moles Conversions

Grams to Moles Conversions

Read each question carefully and perform the necessary grams to moles conversions. Show all your work.

1. What is a mole in chemistry, and why is it a useful unit?

2. The molar mass of water (H₂O) is approximately   g/mol.

3. To calculate the molar mass of a compound, you need the atomic masses of each element and the   of each element in the compound.

4. How many moles are in 36.0 grams of H₂O? (Atomic masses: H=1.0 g/mol, O=16.0 g/mol)

5. Calculate the number of moles in 88.0 grams of CO₂. (Atomic masses: C=12.0 g/mol, O=16.0 g/mol)

6. Which of the following is the correct formula to convert grams to moles?

7. A chemist has 50.0 grams of sodium chloride (NaCl). How many moles of NaCl does she have? (Atomic masses: Na=23.0 g/mol, Cl=35.5 g/mol)

8. What is the molar mass of glucose (C₆H₁₂O₆)? Then, calculate the number of moles in 180.0 grams of glucose. (Atomic masses: C=12.0 g/mol, H=1.0 g/mol, O=16.0 g/mol)