Density Practice Problems

Slides:



Advertisements
Similar presentations
Understanding the relationship of Mass and Volume
Advertisements

Notebook p 29 Three Ways To Determine Density. 1) Regular Objects 1.Measure the each side of the block in centimeters. Calculate volume in cm³: multiply.
Which has more mass? A) 1 kilogram of feathers B) 1 kilogram of bricks
Density Exam Review. If you placed a 15 cm 3 sized object into 20 mL of water, how much water will be displaced? 15 mL of water.
Density & Graphing Review Sheet Answers
DENSITY.
How to Calculate Density
Density If density is a measure of how tightly the matter within an object is packed together which of the cubes above has the greatest density?
Density. Density is the mass of a given object over a unit of volume Density is an intensive property The formula to solve for density is D=m/V.
Density by. Density is _______per unit _______ of a material D = m ÷___ m = ___x___ v = m ÷ ____ D = _____ g/mL or g/cm 3 m = ____in grams L = length.
Starter:.
DENSITY – THE MASS OF ONE CM 3 OR ONE ML OF A SUBSTANCE Mercury 13.6 g/cm g/cm 3 Aluminum 2.7 g/cm 3 Platinum.
Density All substances have different densities, therefore, you can identify a substance if you know its density The formula to calculate something’s density.
Density Density describes how heavy an object is compared to its size.
1 2.8 Density Chapter 2Measurements Copyright © 2008 by Pearson Ed ucation, Inc. Publishing as Benjamin Cummings.
Chemistry: An Introduction to General, Organic, and Biological Chemistry, Eleventh Edition Copyright © 2012 by Pearson Education, Inc. Chapter 1 Chemistry.
Properties of Matter Chemical Properties: the way a substance reacts with others to form new substances with different properties. Example: Steel, rubber,
LecturePLUS Timberlake1 Chapter 1 Measurements Density.
Measurement-A Common Language Density The measure of how much mass is contained in a given volume.
Density.
Density. Different substances have different densities. The density of a material does not depend on the size or amount of the substance you have. Density.
“The Density Equation” Mass (g) Volume (mL or cm 3 ) Density (g/mL or g/cm 3 )
Measurement Quiz Review. What is the term for the amount of space an object occupies? VOLUME.
1. Which is more dense, water or wood? How do you know? 2. Which is more dense, 1 pound of lead or 100 pounds of lead? Wood, if it sinks in water. SAME!
Floating and Sinking.  Density is a measure of how closely packed the atoms in a substance are  Density is a physical property  All matter has measurable.
Density Mass Volume. Density Density compares the mass of an object with its volume D = mass = g or g volume mL cm 3 Note: 1 mL = 1 cm 3.
1 2.8 Density Density Calculations Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.
Introduction to Matter Lecture: Calculating Density.
General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 1.10 Density Chapter 1 Chemistry and Measurements © 2013 Pearson Education,
Calculating density Measuring density: 1 Find out the mass of each object with an electronic balance. Calculating density.
DENSITY How to measure and calculate. REVIEW  Density is the amount of matter in a given area  We calculate it by _ Mass_ Density = Volume Common units:
Density How close together the molecules of an object are. How Dense the molecules are. “Dense forest” = thick, hard to see through.
What is the formula? How can density be used to identify materials?
Density White Board Review Pick up a board, marker, paper towel & calculator.
Calculations Involving Density Calculating Density from Mass and Volume.
Density Section 2.1 Measurement of how packed or crowed object is Ratio of mass to volume.
Goal: Explore and describe the densities of various materials through measurement of their masses and volumes.
Density. Take a look at the two boxes below. Each box has the same volume. If each ball has the same mass, which box would weigh more? Why?
2.7 Density Learning Goal Calculate the density of a substance; use the density to calculate the mass or volume of a substance. Objects that sink in water.
Mass, Volume & Density.
Chapter 1 Measurements 1.7 Density
Density PG. 17.
Density.
Measuring Matter 2.2 Weight and Mass
DENSITY – The mass of one cm3 or one mL of a substance
Chapter 1 Measurements 1.8 Density.
Chapter 2 Measurements 2.8 Density
WARM UP (for NOTES) 1. Which is more dense, water or wood?
Will it Float or Sink? Density.
Density Review.
Density
Density Which is heavier- One pound of lead or one pound feathers?
Determining if an object will float or sink
Density -density is the amount of stuff in a given volume; it is symbolized as ρ -it is mass per volume; note that units can be virtually any mass or volume.
Physical Science Density Challenge 2
Density.
Density.
Understanding Density
Safety and Density.
Characteristic physical properties
Density Notes.
Density.
Test Review.
Viscosity Is the resistance to flow Is an Intensive Property Example:
What weighs more a ton of bricks or a ton of feathers?
Density.
A closer look at the physical property of Density
When you finish your quiz, Read pages 49-53, Section 2
Density: 1. Which is more dense, water or wood? How do you know?
Presentation transcript:

Density Practice Problems

Density Practice Problems - Notes The density of a substance is 7.8 g/cm3. What volume does 39 grams of it take up?

Density Practice Problems - Notes A cup of gold colored metal beads was measured to have a mass of 425 grams. By water displacement, the volume of the beads was calculated to be 48.0 cm3. Given the following densities, identify the metal. m d v

Density Practice Problems - Notes The volume of a solution was measured in a graduated cylinder (on the right). If the mass of the solution is measured to be 60.75 grams, what is the density of the solution? m d v

Density Practice A platinum bar measures 5.0 cm long, 4.0 cm wide, and 1.5 cm thick. It has a mass of 700.0 grams. Calculate the volume of the platinum bar Calculate the density of the platinum bar

2. A lead cylinder has a mass of 540 grams and a density of 2. 70 g/mL 2. A lead cylinder has a mass of 540 grams and a density of 2.70 g/mL. Calculate the volume of the lead cylinder. m d v

3. A cork has a mass of 3 grams and a volume of 16 cm3 3. A cork has a mass of 3 grams and a volume of 16 cm3. Calculate the density. m d v

Try the rest on your own! 4. A thin glass bottle holds 25 mL of liquid and a mass of 19 grams. Calculate the density. 5. A bar of soap is 12 cm tall, 6 cm wide, and 10 cm long. It has a mass of 415 grams. What is the density of the bar of soap? 6. A sheet of metal is 2 cm wide, 10 cm tall, and 15 cm long. It was 4 grams. What is the density? 0.76 g/mL 0.576 g/mL 0.013 g/mL

Try the rest on your own! 7. A pencil has a density of 0.875 g/mL. It has a mass of 3.5 grams. What is the volume? 8. Find the mass of a 50.0 mL quantity of water if the density of the water is 1.00 g/mL. 9. If the density of a 45.0 cm3 block of wood is 0.65 g/cm3, calculate the wood’s mass. 10. List the items from the above problems that would float in water. How do you know? 4 mL 50 g 29.25 g Cork, thin glass bottle, bar of soap, sheet of metal, pencil, block of wood