How can you compare the densities of liquids without calculations?

Slides:

Advertisements

Similar presentations

Remember the Triangle M D V.

Advertisements

DENSITY REMEMBER TO USE PLUS. A measure of how closely the mass of a substance is packed in a given volume Physical property Mass per unit of volume of.

What Is Density? (contd.)

Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are.

DENSITY. 1.A substance has a volume of 2.0 cm₃ and a mass of 38.6 g. What is the density? 2.If 17g of brass occupy 2 cubic centimeters, what is the density?

A Look at Density and How to Calculate It.

Measuring Matter 6 Beta Measuring Matter Which weighs more, a pound of feathers or a pound of sand? Which weighs more, a pound of feathers or a.

DENSITY LAB Mass the amount of material in an object can be determined by using a triple beam balance.

What is density and how is it measured?

Examples: Olive oil has 0.85 g / cm 3 (or 0.85 g / mL). 1 mL of olive oil has a mass of 0.85 grams. Iron has 7.8 g / cm 3. 1 cm 3 of iron has a mass of.

Density- Cornell notes page 125. Density Physical property of matter amount of matter in a given amount of space. (amount of matter is called “mass,”

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.

Introduction to Matter

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 The make up and structure of all matter!!!

How do you calculate the density of a substance?

Density Density describes how heavy an object is compared to its size.

 Property- a characteristic that helps identify an object  *Some common properties are: color, shape, size, feel, taste, smell, mass, volume.

PHYSICAL SCIENCE © Copyright All rights reserved.

+ Density Austin High School Chemistry Ms. Gutierrez

Measurement-A Common Language Density The measure of how much mass is contained in a given volume.

Chapter 2 Section 2 Units of Measurement Density & Volume.

Notes on mass, volume & density. Weight Weight: A measure of the force of gravity on an object. Weight: A measure of the force of gravity on an object.

Density. Definition Density: The amount of matter in a certain volume. (How much matter is in a given amount of space.) Example: Each of the spheres in.

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 )

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!

Density Stuff. Units Mass is measured in grams or g. Volume is measured in milliliters (ml) for liquids, and cubic centimeters (cm 3 ) for solids. So,

Properties of Matter Mass Volume Density.

WHAT IS DENSITY One of the most important physical properties of a substance is its density, or what is mass per unit volume. The property of density may.

The Density Column. Using Density to Predict Position If we put a solid into a liquid, and the solid is more dense than the liquid it will If the liquid.

1 2.8 Density Density Calculations Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

CHEMISTRY 4.5 – Calculating Density. In this photo of an oil spill, the oil is floating on the water. It floats because oil is lighter than water. When.

Density. Matter: anything that has mass and takes up space –Mass – the amount of matter in something –Volume – the amount of space something occupies.

Depends on these two properties: MASS: amount of matter you are made ofMASS: amount of matter you are made of VOLUME: amount of space something takes.

End Show © Copyright Pearson Prentice Hall Slide 1 of 25 Density Reassessment Review Click “SLIDESHOW” then “From Beginning” to view this presentation.

Chapter 1-2 Measuring Matter. How do you find your weight on Earth? You use a scale Your body weight presses down on the springs inside the scale. The.

The Density Column. Question… If the lead weight is dropped into the beaker of water… will it sink or float? d= 11.4 g/ml What will happen if it is dropped.

Density Density is the measure of how much mass is contained in a given volume * density is made up of two measurements mass and volume, so the density.

Density How close together the molecules of an object are. How Dense the molecules are. “Dense forest” = thick, hard to see through.

Density White Board Review Pick up a board, marker, paper towel & calculator.

Crazy Crazy Toys by Patrick Gates Payton Gepp. Cube Description massVolumeDensity Cube A19g15.62cm31.21g/cm3 Cube B140g15.62cm38.96g/cm3 Cube C21g15.62cm31.34g/cm3.

Physical Properties: Extensive vs Intensive Physical Properties Check homework for completion and turn in Safety Contracts Review homework Notes: Extensive.

Density Sink or float?. What is Density? Defined as the amount of matter (mass) within a certain amount of space (volume) Represented by the following.

DENSITY Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the.

Density What is density?

Measuring Matter 2.2 Weight and Mass

Density is mass per unit volume.

DENSITY – The mass of one cm3 or one mL of a substance

Density - the amount of mass a material has for a given volume

Density- notes page 21 Essential Question: How do we explain density?

Activity #21 DENSITY.

Density- Cornell notes page 21

Density Practice Problems

Measuring Matter Chapter 2 Section 2.

WARM UP (for NOTES) 1. Which is more dense, water or wood?

Will it Float or Sink? Density.

Mass Mass: the measurement of How Much matter is in an object Units = grams (kg  mg)

Determining if an object will float or sink

If you have two solids that look alike and you want to tell them apart…how could you do it. You are not allowed to taste it or smell it.

DO NOW Quiz tomorrow: Scientific method, measuring mass and volume, length and temperature, tool and metric unit. What does density measure?

To calculate Density you divide Mass by volume.

Mass, Volume, & Density.

A Look at Density and How to Calculate It

Presentation transcript:

How can you compare the densities of liquids without calculations? What is the difference between the mass and volume of an object? What is density? If you have 30.76 mL how many cubic centimeter are there? What instrument is used to determine liquid volume? A rectangular substance has a length of 4.0 cm, a width of 2.0 cm and a height of 3.0 cm. It has a mass of 10.5 g. What is the density? What would be the density if the volume of the substance was 3 ml?

D= Density Mass per unit volume Density = mass divided by volume: D=M/V Units are g/mL or g/cm3 D=

Density of water is 1 g/ml Objects that are more dense than water will sink Example: 2.78 g/ml Objects that are less dense will float Example: 0 .8 g/ml

Everything has its own density. Density is not affected by the size of an object and can be used to identify what an object is made of Ex. Density of copper is 8.9 g/ml Density of aluminum is 2.7 g/ml

1. A rectangular solid of unknown density is 5 cm long, 2 cm high and 4 cm wide. The mass of this solid is 300 g, calculate its density. 2. A rock occupies a volume of 20 cm3 and has a mass of 54 grams. Find the density of this rock. 3. A rock has a density of 4 g/ml. and a mass of 16 g. What is the volume this rock occupies? 4 An unknown substance from planet X has a density of 10 g/ml. It occupies a volume of 80 ml. What is the mass of this unknown substance? 5. What would be the density of 5 g of the substance from planet X in problem 3? 6. A cube made of an unknown material has a height of 2 cm and a mass of 9 g. Calculate the density of this cube given this information

Actual Density Copper 8.9 g/ml Brass 8.0-8.5 g/ml Steel 7.6 g/ml Aluminum 2.7 g/ml Acrylic 1.16-1.19 g/ml Nylon 1.13 g/ml Pine .35-.60 g/ml PVC 1.39-1.42 g/ml