Mole-Gram Conversion Worksheet

Mole-Gram Conversion Practice

Read each question carefully and provide the best answer. Show all your work for calculations.

1. The molar mass of a substance is numerically equal to its   mass expressed in grams per mole.

2. Avogadro's number is approximately   x 10^23 particles per mole.

3. To convert from moles to grams, you must   by the molar mass.

1. Calculate the mass in grams of 2.50 moles of H₂O (water). (Atomic masses: H=1.01 g/mol, O=16.00 g/mol)

2. What is the mass of 0.75 moles of CO₂ (carbon dioxide)? (Atomic masses: C=12.01 g/mol, O=16.00 g/mol)

1. How many moles are present in 50.0 grams of NaCl (sodium chloride)? (Atomic masses: Na=22.99 g/mol, Cl=35.45 g/mol)

2. A sample of glucose (C₆H₁₂O₆) has a mass of 180.18 grams. How many moles of glucose are in the sample? (Atomic masses: C=12.01 g/mol, H=1.01 g/mol, O=16.00 g/mol)

1. Which of the following is the correct unit for molar mass?

2. If you have 1 mole of any substance, you have approximately how many particles of that substance?

1. The molar mass of an element is the same as its atomic mass.

2. You can convert grams to moles by dividing by Avogadro's number.