4d Date Laboratory Instructor tee Basic Laboratory Techniques Pre-lab Questions So You should be able to answer the following questions before beginning this experiment. What are the basic units of length, mass, volume, and temperature in the SI system? 1. .IT . T 2. What decimal power do the following abbreviations represent: (a) M, (b) k, (c) m, (d) n, and (e) u? 3. What is the number of significant figures in each of the following measured quantities: (a) 351 g, (b) 0.0100 mL, (c) 1.010 mL, and (d) 3.72x10cm? TE : What is the length in millimeters of a crystal of copper sulfate that is 0.180 in. long? 4. -10 Perform the following conversions: (a) 72.3 mg to g, (b) 6.0x10m to mm, and (c) 325 mm to um. 5. 6. DNA is approximately 2.5 nm in length. If an average man is 5 ft 10 in. tall, how many DNA molecules could be stacked to extend from the ground to the top of the head of an average man? 7. A liquid has a volume of 3.70 L. What is its volume in mL? In cm3? Copyright O 2018 Pearson Education, Inc. Basic Laboratory Techniques Why should you never determine the mass of a hot object? 8. Why is it necessary to calibrate a thermometer and volumetric glassware? 9. 2pindoo aeds dal- ite What is precision? 10. da sd bleode sof tos elds ginld 0p gaiwollo What is the density of an object with a mass of 1.583 g and a volume of 0.2009 mL? 11. object three times gave the following results: 9.2 g, 9.1 g, and 9.3 g. Find the Determining the mass of an mean mass and the average deviation from the mean. 12. sdt oi te dos nt 201 Normal body temperature is 37.0 °C. What is the corresponding Fahrenheit temperature? 13. 14. What is the mass in kilograms of 680 mL of a substance that has a density of 0.930 g/mL? 15. An object has a mass of exactly 5 g on an analytical balance that has an accuracy of 0.1 mg. To how many significant figures should this mass be recorded?
4d Date Laboratory Instructor tee Basic Laboratory Techniques Pre-lab Questions So You should be able to answer the following questions before beginning this experiment. What are the basic units of length, mass, volume, and temperature in the SI system? 1. .IT . T 2. What decimal power do the following abbreviations represent: (a) M, (b) k, (c) m, (d) n, and (e) u? 3. What is the number of significant figures in each of the following measured quantities: (a) 351 g, (b) 0.0100 mL, (c) 1.010 mL, and (d) 3.72x10cm? TE : What is the length in millimeters of a crystal of copper sulfate that is 0.180 in. long? 4. -10 Perform the following conversions: (a) 72.3 mg to g, (b) 6.0x10m to mm, and (c) 325 mm to um. 5. 6. DNA is approximately 2.5 nm in length. If an average man is 5 ft 10 in. tall, how many DNA molecules could be stacked to extend from the ground to the top of the head of an average man? 7. A liquid has a volume of 3.70 L. What is its volume in mL? In cm3? Copyright O 2018 Pearson Education, Inc. Basic Laboratory Techniques Why should you never determine the mass of a hot object? 8. Why is it necessary to calibrate a thermometer and volumetric glassware? 9. 2pindoo aeds dal- ite What is precision? 10. da sd bleode sof tos elds ginld 0p gaiwollo What is the density of an object with a mass of 1.583 g and a volume of 0.2009 mL? 11. object three times gave the following results: 9.2 g, 9.1 g, and 9.3 g. Find the Determining the mass of an mean mass and the average deviation from the mean. 12. sdt oi te dos nt 201 Normal body temperature is 37.0 °C. What is the corresponding Fahrenheit temperature? 13. 14. What is the mass in kilograms of 680 mL of a substance that has a density of 0.930 g/mL? 15. An object has a mass of exactly 5 g on an analytical balance that has an accuracy of 0.1 mg. To how many significant figures should this mass be recorded?
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter2: Measurements And Calculations
Section: Chapter Questions
Problem 102AP: On the planet Xgnu, the most common units of length are the blim (for long distances) and the kryll...
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Question
Transcribed Image Text:4d
Date
Laboratory Instructor
tee
Basic Laboratory Techniques
Pre-lab
Questions
So
You should be able to answer the following questions before beginning this experiment.
What are the basic units of length, mass, volume, and temperature in the SI system?
1.
.IT
. T
2. What decimal power do the following abbreviations represent: (a) M, (b) k, (c) m, (d) n, and (e) u?
3. What is the number of significant figures in each of the following measured quantities: (a) 351 g,
(b) 0.0100 mL, (c) 1.010 mL, and (d) 3.72x10cm?
TE :
What is the length in millimeters of a crystal of copper sulfate that is 0.180 in. long?
4.
-10
Perform the following conversions: (a) 72.3 mg to g, (b) 6.0x10m to mm, and (c) 325 mm to um.
5.
6. DNA is approximately 2.5 nm in length. If an average man is 5 ft 10 in. tall, how many DNA molecules
could be stacked to extend from the ground to the top of the head of an average man?
7. A liquid has a volume of 3.70 L. What is its volume in mL? In cm3?
Copyright O 2018 Pearson Education, Inc.
Transcribed Image Text:Basic Laboratory Techniques
Why should you never determine the mass of a hot object?
8.
Why is it necessary to calibrate a thermometer and volumetric glassware?
9.
2pindoo
aeds
dal-
ite
What is precision?
10.
da sd bleode sof
tos elds ginld
0p gaiwollo
What is the density of an object with a mass of 1.583 g and a volume of 0.2009 mL?
11.
object three times gave the following results: 9.2 g, 9.1 g, and 9.3 g. Find the
Determining the mass of an
mean mass and the average deviation from the mean.
12.
sdt oi te
dos nt 201
Normal body temperature is 37.0 °C. What is the corresponding Fahrenheit temperature?
13.
14. What is the mass in kilograms of 680 mL of a substance that has a density of 0.930 g/mL?
15. An object has a mass of exactly 5 g on an analytical balance that has an accuracy of 0.1 mg. To how
many significant figures should this mass be recorded?
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