Conversions
Add/Sub Significant figures
Multiply/Divide Significant Figures
% Error
Density
100
1.0 kg to Dg
What is 100 Dg
100
2.32 +6.2
What is 8.5
100
14.62 x 2.9
What is 42
100
Joshua uses his thermometer and finds the boiling point of ethyl alcohol to be 75 C. He looks in a reference book and finds that the actual boiling point of ethyl alcohol is 80 C. What is his percent error?
What is 6.25%
100
A block of aluminum occupies a volume of 15.0 mL and weighs 40.5 g. What is its density?
What is 2.7 g/mL
200
.32 DL to L
What is 3.2 L
200
32.46 - 4.8
What is 27.7
200
25.324 / 2.98
What is 8.50
200
The density of water at 4 C is known to be 1.00 g/mL. Kayla experimentally found the density of water to be 1.075 g/mL. What is her percent error?
What is 7.5%
200
Mercury metal is poured into a graduated cylinder that holds exactly 22.5 mL. The mercury used to fill the cylinder weighs 306.0 g. From this information, calculate the density of mercury
What is 13.6 g/mL
300
12 km to cm
What is 1200000 cm
300
5.689 + 2.34 +16.4567
What is 24.49
300
3.244 x 2.91 x 31.64
What is 299
300
An object has a mass of 35.0 grams. On Anthony’s balance, it weighs 34.85 grams. What is the percent error of his balance?
What is .43%
300
A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper?
What is 8.92 g/cm^3
400
135 mm to m
What is .135 m
400
63.98 - 15.324 - 5.4
What is 43.3
400
158.4 / 3.986 / 14.59
What is 2.724
400
Willomina Witty was assigned to determine the density of a sample of nickel metal. When she finished, she reported the density of nickel as 5.59 g/ml. However, Miraculous knew the density of nickel was 6.44 g/ml.
What is 13.20%
400
Find the mass of .250 L of benzene. The density of benzene is 0.8765 g/mL.
What is 219.125 g
500
2.65 mL to kL
What is .00000265kL
500
23.69 - 6.249 + 15.8993
What is 33.34
500
(16.87 x 12.59) / 3.48
What is 61.0
500
The Handbook of Chemistry and Physics lists the density of a certain liquid to be 0.7988 g/mL. Taylor experimentally finds this liquid to have a density of 0.7925 g/mL. The teacher allows up to +/- 0.500% error to make an “A” on the lab. Did Fred make an “A”? Prove your answer.
What is .79% so no he didn't make an A
500
.0285 kg of iron shot is added to a graduated cylinder containing 45.50 mL of water. The water level rises to the 49.10 mL mark, from this information, calculate the density of iron.
What is 7.92 g/mL
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