Questions and Answers
What is the density of a substance if a 2.75 g sample occupies a volume of 250.0 mL?
0.011 g/mL
What is the mass of silver (Ag) that occupies 965 mL of space if its density is 10.5 g/mL?
10,132 g
What volume will 35.2 g of carbon tetrachloride occupy if it has a density of 1.60 g/mL?
22 mL
What is the mass of a sample of ethanol with a density of 0.789 g/mL and a volume of 150.0 mL?
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What is the density of a sample of gold (Au) that has a mass of 71.9 g and a volume of 9.5 mL?
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What is the definition of volume?
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What is the definition of mass?
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What is the formula for the volume of a solid?
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What is the density of a ring that has a mass of 4.53 g and a volume of 0.212 cm³?
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What is the definition of density?
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What is the formula for density?
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What is the formula for volume?
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What is the formula for mass?
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Study Notes
Density Calculations
- Density is the mass of a substance divided by its volume.
- Formula: Density = Mass / Volume.
Examples of Density Calculations
- A 2.75 g sample in 250.0 mL yields a density of 0.011 g/mL.
- The density of silver (Ag) is 10.5 g/mL; for a volume of 965 mL, mass equals 10,132 g.
- Carbon tetrachloride (density of 1.60 g/mL) has a volume of 22 mL for 35.2 g of mass.
- Ethanol has a density of 0.789 g/mL; a volume of 150.0 mL corresponds to a mass of 118.35 g.
- A gold sample occupies 9.5 mL with a mass of 71.9 g, resulting in a density of 7.57 g/mL.
- A ring with a mass of 4.53 g and volume of 0.212 cm³ has a density of 21.4 g/cm³.
Definitions and Concepts
- Volume refers to the amount of space an object occupies.
- Mass is the quantity of matter in an object.
- The volume of a solid can be calculated as Length x Width x Height.
Important Formulas
- Volume can be derived using the formula: Volume = Mass / Density.
- Mass can be calculated with the formula: Mass = Volume x Density.
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Description
This set of flashcards focuses on calculating density, mass, and volume using real examples. You will learn how to apply formulas related to mass, volume, and density to solve practical problems. Perfect for students studying chemistry and physical science.
