{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Lecture 2

# Lecture 2 - Density two main physical properties of matter...

This preview shows pages 1–9. Sign up to view the full content.

Density

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Mass & Volume two main physical properties of matter mass and volume are extensive properties the value depends on the quantity of matter extensive properties cannot be used to identify what type of matter something is if you are given a large glass containing 100 g of a clear, colorless liquid and a small glass containing 25 g of a clear, colorless liquid - are both liquids the same stuff? even though mass and volume are individual properties, for a given type of matter they are related to each other!
Mass vs. Volume of Brass Mass grams Volume cm 3 20 2.4 32 3.8 40 4.8 50 6.0 100 11.9 150 17.9

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Volume vs. Mass of Brass y = 8.38x 0 20 40 60 80 100 120 140 160 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 Volume, cm 3 Mass, g Ratio of mass:volume is an intensive property value independent of the quantity of matter
Volume Mass Density =

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Example 1.3 Decide if a ring with a mass of 3.15 g that displaces 0.233 cm 3 of water is platinum Density of platinum = 21.4 g/cm 3 therefore not platinum Compare to accepted value of the intensive property Since the equation is solved for the quantity you want to find, and the units are correct, substitute and compute mass = 3.15 g volume = 0.233 cm 3 density, g/cm 3 Given: Find: Equation: Find the equation that relates the given quantity to the quantity you want to find Volume Mass Density = 3 3 g/cm 13.5 cm 0.233 g 15 . 3 = = = d V m d
Measurement and Significant Figures

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
What Is a Measurement?
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### What students are saying

• As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

Kiran Temple University Fox School of Business ‘17, Course Hero Intern

• I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

Dana University of Pennsylvania ‘17, Course Hero Intern

• The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

Jill Tulane University ‘16, Course Hero Intern