ch2 density ws

Density worksheet (show work in notebook; formula, values substituted in and label!)

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use this information to help with questions 1-11

substance density

Osmium 22.6g/mL

Gold 19.3g/mL

Mercury 13.6g/mL

Lead 11.4g/mL

Copper 8.96g/mL

Aluminum 2.70g/mL

Water 1.00g/mL

Alcohol 0.781g/mL

Styrofoam 0.145g/mL

SF6 gas 6.52g/mL

oak wood .77g/cubic centimeter

Air 1.28g/L

Helium 0.179g/L

shape Equation

Block V=lwh

Cylinder V=pir²h

Sphere V=4pir³/3

1. A 13.2mL rock has a mass of 47.6g Determine its density.

Work: ans______________

2. What is the density of138.42g of salt water if its volume is 117.0mL?

Work: ans______________

3. What is the density of the H gas in a 5.0L bag if the mass is 0.466g?

Work: ans______________

4. 25.2 mL of water is placed in a graduated cylinder. A 22.6g stone is dropped in, and the water rises to 32.4mL. What is the stone’s density?

Work: ans______________

5. When a graduated cylinder is placed on an electronic balance, it reads 78.32g. 10.00mL of liquid glycerine is added, and now it reads 91.78g. What is density of the glycerine?

Work: ans______________

6. A brick 3.0cm * 4.5cm * 6.7cm has a mass of 985g. .What is its density? What is it probably made of?

Work: ans______________ ________________

7. A cylinder has a mass of 528.6g, length of 14.2cm and diameter of 2.30cm. what is the cylinder probably made of? What is your evidence?

Work: ans______________ _______________

8. A ball has a mass of 753g and radius of 5.62cm. Will it float or sink in water? Will it float or sink in the saltwater in question 2? What is your evidence?

Work: ans__________ _____________ _____________

9. How much would a 15.2mL chunk of Styrofoam weigh? How much would the same size piece of osmium weigh?

Work: ans______________ ______________

10. What volume would 62.4g of mercury have?

Work: ans______________

11. Find the thickness of a 187.3g lead block, if 3.20cm long and 2.95cm wide.

Work: ans______________

12. Use dimensional analysis to change 1.5 cups in to milliliters. 2cups=1pt; 2pts = 1qt; 4qts = gal 1.06 qt= 1L