Sig Figs
Measuring/Units
Unit Conversions
Density
100
How many sig figs are in the following value?
409.001
6
100
Give an example of a unit of volume.
mL, L, gallons, fluid ounces, cm3
100
A newborn baby weighs 7.5 lbs. What is its mass in kilograms? 1 kg = 2.20 lbs
3.4 kg
100
Density relates what two properties of a substance?
Mass and volume
200
How many sig figs are in the following value?
0.009180
4
200
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What is a correct measurements for the cylinder?
2.65 mL
200
How many liters are in 14.5 fl oz?
1 fl oz = 29.57 mL
1000 mL = 1 L
0.429 L
200
A sample floats when placed in corn syrup, but sinks in water. The density of water is 1.00 g/mL, and the density of corn syrup is 1.50 g/mL. What is a possible value for the density of the sample?
1.00 g/mL - 1.50 g/mL
300
Round the following value to 2 sig figs:
1.08715
1.1
300
Which of the following is a more uncertain measurement?
2.0 cm 2.001 cm 2 cm
2 cm
300
WHICH... IS... HEAVIER???
13,000 kg OR 14 US tons
1 kg = 2.20 lbs
1 US ton = 2,000 lbs
13,000 kg
300
A sample has a density of 2.78 g/mL. How much does 1.00 mL of the substance weigh in grams?
2.78 grams
400
Complete the following calculation and round the answer to the correct number of sig figs:
5.01 x 0.002
0.01
400
What type of measurement tells you the amount of space that an object occupies?
Volume
400
How many seconds are in 28.0 days?
2,420,000 seconds
400
A 15 foot plank of red cedar has a volume of 70,000 cm3 and a mass of 28,000 grams. What is the density of the red cedar?
0.4 g/cm3
500
A student calculated the density of an object with a mass of 13.570 grams and a volume of 15.0 mL. The answer in their calculator is 0.904666666. What should their final answer be?
0.905 g/mL
500
What is the most correct measurement for the following? 
2.35 cm
500
A baker is asked to deliver 2 gross of donuts to a business. If one donut weighs 25 grams, how many pounds would the 2 gross of donuts weigh?
1 gross = 144 donuts
1000 g = 1 kg
1 kg = 2.20 lbs
15.84 lbs
500
Quartz has a density of 2.64 g/cm3. A quartz crystal has a mass of 1.50 kg. What volume does the crystal occupy?
568 cm3