Bellringer 3/28 How many moles of calcium are in 425g of Calcium (Ca)?
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Bellringer 3/28 • How many moles of calcium are in 425g of Calcium (Ca)?
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Transcript of Bellringer 3/28 How many moles of calcium are in 425g of Calcium (Ca)?
Bellringer 3/28
• How many moles of calcium are in 425g of Calcium (Ca)?
The MolePart 2
Mass – Particle Conversions
• How many atoms of gold are in 25.0 g of gold?
Mass – Particle Conversions
• How many grams of He are in 5.50 x 1022 atoms of He?
Moles of Compounds
• Freon has the formula CCl2F2
• This now gives us new conversion factors
Example
• How many moles of F are in 5.50 mol of CCl2F2?
Example
• How many moles of Al are in 1.25 mol of Al2O3?
Example
• How many Cl- ions are in 35.6 g of AlCl3?
• How many Al +3 ions?