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Name________________________________ Book #:___________Period______________ Date___________________________________ More Details of Density 1) What is density?_______________________________________________________________________________________________________ 2) We use ____________________________ and ______________________________ to measure density, so the units of density are often___________________________________ or ______________________________. 3) The _________________________ the density the _________________________________ something will be and the _____________________________ the density the _________________________________________ and something will be. 4) ____________________________ and density are different. Two pounds of feathers weighs more than 1 pound of steel but steal is more dense. 5) Density will determine if something __________________________________ or ____________________________________. Let’s think about ice. It is _______________________________ dense than water that is why it floats in water The density of ____________________________ is 0.92 g/ml and the density of water is 1.00 g/ml. Density is a physical property. That means it NEVER CHANGES!!!. A Big piece of lead will have the same density as a small piece of lead because all lead has the same density. Big piece of lead-Density = 11.3 g/cm3 Big piece of lead -Density = 11.3 g/cm3 6) Using density we can find other parts of the ______________________________. If we have density and mass we can find _________________________________________________. That equation is V= mass/ density 7) If we have density and volume we can find _______________________________. That equation is M= Density x Volume. Name________________________________ Book #:___________Period______________ Date___________________________________ Density Worksheet 1) Why did the Diet Coke float in the water and the Regular Coke sank? 2) What substance was in the Diet Coke that was different in the Regular Coke? 3) 4) True or False- A small piece of silver will have the density as a large piece of silver._________________________________ Why?__________________________________________________________________________________________________________________________ 5) What weighs more, 2 pounds of feathers or 2 pounds of steel? ________________________________________________________ ____________________________________________________________________________________________________________________________________ 6) What is denser, 2 pounds of feathers or 2 pounds of steel? ________________________________________________________ ____________________________________________________________________________________________________________________________________ 7) What are the units of density? _____________________________________ or ___________________________________________________ Name________________________________ Book #:___________Period______________ Date___________________________________ Density Calculations -Finding Mass m D = ------- Original Formula v - Adjust the formula for the unknown m = Density x Volume 1. The density of silver is 10.49 g/cm3. If a sample of pure silver has a volume of 12.993 cm3, what would the mass? 2. How many grams of tin would occupy 5.5 L, if it has a density of 7.265 g/cm3? 3. What is the mass of a 350 cm3 sample of pure silicon with a density of 2.336 g/cm3? Finding Volume m D = ------- Original Formula v mass - Adjust the formula for the unknown v = -----------density 1. Pure gold has a density of 19.32 g/cm3. How large would a piece of gold be if it had a mass of 318.97 g? 2. How many cm3 would a 55.932 g sample of copper occupy if it has a density of 8.92 g/cm3? 3. The density of lead is 11.342 g/cm3. What would be the volume of a 200.0 g sample of this metal? Name________________________________ Book #:___________Period______________ Date___________________________________ Finding Density Equation for Finding Density1. The mass of a toy spoon is 7.5 grams, and its volume is 3.2 ml. What is the density of the toy spoon? 2. A mechanical pencil has the density of 3 grams per cubic centimeter. The volume of the pencil is 15.8 cubic centimeters. What is the mass of the pencil? 3. A screwdriver has the density of 5.5 grams per cubic centimeter. it also has the mass of 2.3 grams. What is the screwdrivers volume? A rock has the mass on the triple beam balance below and a volume on the graduated cylinder below, what is it’s density? Mass__________________________________ Density = Volume_________________________________ Name________________________________ Book #:___________Period______________ Date___________________________________ More Details of Density With Answers 1) What is density? ___Density is an amount of mass for a specific volume______________________ 2) We use ________mass____ and ___________volume_______ to measure density, so the units of density are often ________g/mL_______________ or ________g/cm3____________. 3) The ______higher ____ the density the _______heavier______ something will be and the ________lower_________ the density the ______________lighter_______ and something will be. 4) ______Mass______ and density are different. Two pounds of feathers weighs more than 1 pound of steel but steal is more dense. 5) Density will determine if something _________will sink_____ or ______________float________. Let’s think about ice. It is ___________less_____ dense than water that is why it floats in water The density of _________ice_______ is 0.92 g/ml and the density of water is 1.00 g/ml. Density is a physical property. That means it NEVER CHANGES!!!. A Big piece of lead will have the same density as a small piece of lead because all lead has the same density. Big piece of lead-Density = 11.3 g/cm3 Big piece of lead -Density = 11.3 g/cm3 6) Using density we can find other parts of the ______equation_______. If we have density and mass we can find ______________volume__________________. That equation is V= mass/ density 7) If we have density and volume we can find __________mass_____. That equation is M= Density x Volume.