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3 cards from this section. Quick, good the night before a test.
What is the definition of a mole?
Think about how we count items in groups.
How many particles are in one mole?
Remember the name Avogadro!
What is the molar mass of water (H₂O)?
Add numbers for hydrogen and oxygen together.
Avogadro's number is equal to how many particles in one mole?
Recall what 1 mole represents.
Given the molar mass of sodium chloride is approximately 58.5 g/mol, how many grams are in 0.5 moles of NaCl?
Use the formula: mass = moles × molar mass.
If you have 20 grams of carbon dioxide (CO₂), how many moles do you have? The molar mass of CO₂ is 44 g/mol.
Rearrange the mass and molar mass relationship.
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