WorksheetsChemistry Unit 4 Review
Total questions: 40
Worksheet time: 2hrs 38mins
The best measurement for this volume would be ________ mL
800
880
875
875.5
The best measurement for this volume would be ________ mL
870
880
875
875.5
The best measurement for this volume would be ________ mL
36.75
36.8
36
37
The best measurement for this volume would be ________ mL
36.745
36.74
36.70
36.7
The best measurement for this volume would be ________ mL
4
4.7
4.74
4.745
The best measurement for this length would be ________ cm
8
8.27
8.127
8.3
The best measurement for this length would be ________ cm
12
12.7
12.72
12.724
The best measurement for this length would be ________ cm
52
52.2
52.25
52.255
The best measurement for this temperature would be ________ oC
21
20.9
20.92
20.924
The best measurement for this temperature would be ________ oC
58
59
58.7
58.75
The best measurement for this temperature would be ________ oC
60
57
57.5
57.75
Choose the statement that's not an important principal of good measurement.
Look at the quantity you are measuring at eye level and straight on.
Use metric units, not SAE units.
Add dye to transparent solutions to make them easier to see and measure.
Read liquid volumes from the bottom of the meniscus
The measurement 2.051 g contains (a) significant figures
The measurement 0.00288 g/mL contains (a) significant figures
The measurement 4800 kg contains (a) significant figures
The measurement 4800.0 kg contains (a) significant figures
The measurement 0.0505 g contains (a) significant figures
The measurement 32.0501 g contains (a) significant figures
The measurement 0.0108 g/mL contains (a) significant figures
The measurement 120,700 kg contains (a) significant figures
The measurement 1050.30 g contains (a) significant figures
The measurement 0.00870 g contains (a) significant figures
Round 125.87 g to 3 significant figures: (a) g
Round 480490 g to 2 significant figures: (a) g
Round 0.06577 g to 1 significant figure: (a) g
Round 120.055 g to 4 significant figure: (a) g
A sample has a mass of 20.55 g and a volume of 21.9 mL. It's density is (a) g/mL
A sample has a mass of 72.558 g and a volume of 6.88 mL. It's density is (a) g/mL
A sample has a mass of 0.51 g and a volume of 0.59 mL. It's density is (a) g/mL
A sample has a mass of 20.020 g and a volume of 25.08 mL. It's density is (a) g/mL
A student measures the mass of a metal piece on a scale and the volume of the metal in a graduated cylinder by water displacement. A few drops of water splashed up when the metal went into the water. This will cause a __________ error.
random
systematic
direct
inverse
A student measures the mass of a metal piece on a scale and the volume of the metal in a graduated cylinder by water displacement. The balance is not calibrated properly; it's off by about 2%. This will cause a __________ error.
random
systematic
direct
inverse
A metal has a measured density of 11.1 g/mL. The accepted value for the metal's density is 11.6 gmL. The percent difference for the density values is (a) %
A metal has a measured density of 3.150 g/mL. The accepted value for the metal's density is 2.7 gmL. The percent difference for the density values is (a) %
A liquid has a measured density of 0.79g/mL. The accepted value for the liquid's density is 0.8125 gmL. The percent difference for the density values is (a) %
A liquid has a measured density of 1.1g/mL. The accepted value for the liquid's density is 1.068 gmL. The percent difference for the density values is (a) %
The quantity we use to assess the accuracy of experimental results is
average percent deviation
percent difference
average density
standard deviation
The quantity we use to assess the precision of experimental results is
average percent deviation
percent difference
average density
standard deviation
A metal foil that has a density of 7.13 g/mL has a length of 10.5 cm and a width 12.5 cm. The mass of the metal foil is 0.455 g. What is the thickness of the foil? (a) cm
A metal foil that has a density of 19.3 g/mL has a length of 15.5 cm and a width 13.5 cm. The mass of the metal foil is 0.25 g. What is the thickness of the foil? (a) cm
