Mass and Moles Worksheet
This worksheet covers fundamental concepts of mass and moles in chemistry, including molar mass calculations and Avogadro's number.
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Mass and Moles Worksheet
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Read each question carefully and provide your answers in the space provided. Show all your calculations for problems.
1. What is the approximate value of Avogadro's number?
6.022 x 10^22
6.022 x 10^23
6.022 x 10^24
1.0 x 10^23
2. What is the unit for molar mass?
grams
moles
grams/mole
moles/gram
1. The mass of one mole of a substance is called its .
2. Avogadro's number represents the number of in one mole of a substance.
3. To convert grams to moles, you divide the mass by the .
1. Calculate the molar mass of water (H₂O). (Atomic masses: H=1.01 g/mol, O=16.00 g/mol)
2. How many grams are in 0.5 moles of CO₂? (Atomic masses: C=12.01 g/mol, O=16.00 g/mol)
1. One mole of any substance contains the same number of particles.
True
False
2. The molar mass of an element is numerically equal to its atomic mass.
True
False
1. You have a sample of 100 grams of glucose (C₆H₁₂O₆). How many moles of glucose do you have? How many molecules of glucose are in the sample? (Atomic masses: C=12.01 g/mol, H=1.01 g/mol, O=16.00 g/mol)
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