Measure It
Conversions
Are These Figures Significant?
Don't Be So Dense
Miscallaneous
100
All measurements taken with this rules would end in which place value and unit?
What is 100ths place and centimeters?
X.XX cm
100
120 g in kg
What is 0.12 kg?
100
The number of sig figs in 0.02050 m
What is 4?
100
The volume of a 73.9 g sample of tin with a density of 7.21 g/cm3.
What is 10.2 cm3?
100
Number of sig figs in 56000 L
What is 2?
200
The place value and unit which this graduated cylinder reports volumes
What is the 10ths place and milliliters?
13.0 mL
200
3.28 km in cm
What is 3.28 105 cm?
200
5.81 cm - 0.983 cm = ??
What is 4.83 cm?
200
The density of chromium is 7.19 g/cm3. The volume of a 0.31 kg sample of Cr.
What is 43 cm3?
200
Round 1864.2 km to 2 significant figures
1900 km
300
What is the length of the object below?
What is 2.29 cm?
or
What is 2.30 cm?
300
You are giving a patient 3.0 cm3/min of a given solution intravenously. If this is done for 24 hours, how many liters of this solution will you need?
4.3 L
300
5.7621 m x 6.901 m x 0.460 m =
18.3 m3
300
A block of copper metal has a mass of 1896 g. The dimensions of the block are 8.40 cm x 5.45 cm x 4.6 cm. What is the density of copper?
9.0 g/cm3
300
What sport did Ms. Zibart play in high school?
Badminton
400
Determine the volume of the liquid in the graduated cylinder.
What is 328 mL?
(the range 326 - 330. would be acceptable)
400
You are buying carpet to cover a room that measures 39 ft by 40. ft. The carpet cost $18 per square yard. How much will the carpet cost?
$3100
400
896.72 km + 1900 km = ??
What is 2800 km?
400
Aluminum can be sold to chemistry teachers in strips that are 5.00 cm wide and 0.40 cm thick. If a chemistry teacher needs a piece of aluminum that has a mass of 54.0 g, how long a piece would she need to cut? (density of aluminum 2.70 g/cm3)
l= 10. cm
400
Four students measured the density of aluminum (2.70 g/cm3). Which student was accurate & precise? Which student was the neither accurate nor precise? Calculate John's % Error
accurate & precise: Mike
neither accurate nor precise: Sally
John had 8.33% error
500
The temperature reading of the thermometer
What is 19°C?
(Since the thermometer increases by 2°C increments, can only be significant to the ones place)
500
A local zoning ordinance says that a house’s “footprint” (area of its ground floor) cannot occupy more than 25% of the lot it is built on. Suppose you own a 0.33 acre lot (1 acre = 43,560 ft2). What is the maximum allowed footprint for your house in square meters?
330 m2
500
1.31 cm x 2.3 cm =
3.0 cm2
500
The annual production of sodium hydroxide (NaOH) in the United States in 2019 was 54.6 billion liters. How pounds of sodium hydroxide are produced? (density of sodium hydroxide is 2.130 g/cm3).
If the same mass of barium hydroxide is needed, what volume (in m3) would need to be produced. (density barium hydroxide is 3.74 g/cm3)
500
The percent error of a student who calculated the density of water as 0.98 g/mL when the actual density of water is 1.00 g/mL.
What is -2.0% error? (please ignore the absolute value in my work)