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# i don't know how to start any of these problems. i need

helping setting them up

3. A 5-carat diamond has a mass of 1.000 g. If the gemstone displaces a liquid from 1.00 mL to
1.30 mL in a glass buret, what is the density of the diamond?
Aluminum foil is often incorrectly referred to as tin foil; however, tin metal is much more
dense, 7.28 g/cm3. Find the thickness of a sheet of tin foil that measures 10.0 cm by 10.0 cm
and has a mass of 1.091 g.
5. A thin lead apron is used in dental offices to protect patients from harmful X rays. If the sheet
measures 75.0 cm by 55.0 cm by 0.10 cm, and the density of lead is 11.3 g/cm3, what is the
0. 10 cm
mass of the apron in grams?
V = 1x wxt
55.0cm V= 55 0cm *75.0cm*0.10(m
75.0cm
V= 412.5cm 3
11.391cm3 + me 4
413 cmp 3
6. (optional) If the specific gravity of E85 gasohol is 0.801, what is the mass of 1.00 gallon of
the E85 fuel. (Given: 1 gallon = 3.785 liters.)
Density of Liquids and Solids

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