Introductory Chemistry, Books a la Carte Plus MasteringChemistry with eText -- Access Card Package (5th Edition)
5th Edition
ISBN: 9780321934604
Author: Nivaldo J. Tro
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 2, Problem 52E
Round each number to three significant figures.
a.65.74
b.65.749
c.65.75
d.65.750
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Round each number to four significant figures.a. 84,791 kg c. 256.75 cmb. 38.5432 g d. 4.9356 m
Round each number to three significant figures.
b. 1.548937 x 10
a. 79,845.82
c. 2.3499999995
d. 0.000045389
Round each number to four significant figures.a. 431,801 kg d. 0.004384010 cmb. 10,235.0 mg e. 0.00078100 mLc. 1.0348 m f. 0.0098641 cg
Chapter 2 Solutions
Introductory Chemistry, Books a la Carte Plus MasteringChemistry with eText -- Access Card Package (5th Edition)
Ch. 2 - Q1.Express the number 0.000042 in scientific...Ch. 2 - Q2. A graduated cylinder has markings every...Ch. 2 - How many significant figures are in the number...Ch. 2 - Round the number 89.04997 to three significant...Ch. 2 - Q5.Perform this multiplication to the correct...Ch. 2 - Q6.Perform this addition to the correct number of...Ch. 2 - Q7. Perform this calculation to the correct number...Ch. 2 - Convert 76.8 cm to m. a. 0.0768 m b. 7.68 m c....Ch. 2 - Q9.Convert 2855 mg to kg.
a.
b. 2.855 kg
c....Ch. 2 - Q10. A runner runs 4875 ft in 6.85 minutes. What...
Ch. 2 - An automobile travels 97.2 km on 7.88 L of...Ch. 2 - Convert 876.9 in.3 tom3. a. 0.01437m3 b. 22.27 m3...Ch. 2 - Q14. A cube measures 2.5cm on each edge and has a...Ch. 2 - What is the mass of 225 mL of a liquid that has a...Ch. 2 - Q16. What is the edge length of a 155-g iron cube?...Ch. 2 - 1. Why is it necessary to include units when...Ch. 2 - Why are the number of digits reported in...Ch. 2 - Why is scientific notation useful?Ch. 2 - If a measured quantity is written correctly, which...Ch. 2 - 5. When do zeros count as significant digits, and...Ch. 2 - 6. How many significant digits are there in exact...Ch. 2 - 7. What limits the number of significant digits in...Ch. 2 - What limits the number of significant digits in a...Ch. 2 - 9. How do we determine significant figures in...Ch. 2 - What are the rules for rounding number?Ch. 2 - 11. What are the basic SI units of length, mass,...Ch. 2 - 12. List the common units of volume.
Ch. 2 - Suppose you are trying to measure the diameter of...Ch. 2 - What is the difference between mass and weight?Ch. 2 - 15. Using a metric ruler, measure these objects to...Ch. 2 - Using a stopwatch, measure each time to the...Ch. 2 - Explain why units are important in calculations.Ch. 2 - How are units treated in a calculation?Ch. 2 - 19. What is a conversion factor?
Ch. 2 - Why does the fundamental value of a quantity not...Ch. 2 - Write the conversion factor that converts a...Ch. 2 - Write conversion factors for each. a. miles to...Ch. 2 - This book outlines a four-step problem-solving...Ch. 2 - Experienced problem solvers always consider both...Ch. 2 - 25. Draw solution map to convert a measurement in...Ch. 2 - Draw a solution map to convert a measurement in...Ch. 2 - 27. Draw a solution map to convert a measurement...Ch. 2 - Draw a solution map to convert a measurement in...Ch. 2 - What density? Explain why density can work as a...Ch. 2 - Explain how you would calculate the density of a...Ch. 2 - Prob. 31ECh. 2 - Prob. 32ECh. 2 - Note: The exercises in the problems section are...Ch. 2 - Express each number in scientific notation. a....Ch. 2 - 35. Express each number in decimal notation (i.e.,...Ch. 2 - 36. Express each number in decimal notation (i.e.,...Ch. 2 - 37. Express each number in decimal notation (i.e.,...Ch. 2 - 38. Express each number in decimal notation (i.e.,...Ch. 2 - 39. Complete the table.
Decimal...Ch. 2 - Complete the table. Decimal Notation Scientific...Ch. 2 - 41. Read each instrument to the correct number of...Ch. 2 - Read each instrument to the correct number of...Ch. 2 - For each measured quantity, underline the zeros...Ch. 2 - For each measured quantity, underline the zeros...Ch. 2 - How many significant figures are in each measured...Ch. 2 - Significant Figures
46. How many significant...Ch. 2 - 47 Correct any entries in the table that are...Ch. 2 - Correct any entries in the table that are wrong....Ch. 2 - Round each number to four significant figures. a....Ch. 2 - Round each number to three significant figures. a....Ch. 2 - 51. Round each number to two significant...Ch. 2 - 52. Round each number to three significant...Ch. 2 - 53. Each number is supposed to be rounded to three...Ch. 2 - Each number is supposed to be rounded to two...Ch. 2 - Round the number on the left to the number of...Ch. 2 - 56. Round the number on the left to the number of...Ch. 2 - Perform each calculation to the correct number of...Ch. 2 - Perform each calculation to the correct number of...Ch. 2 - 59. Correct any answers that have the incorrect...Ch. 2 - 60. Correct any answers that have the incorrect...Ch. 2 - Perform each calculation to the correct number of...Ch. 2 - Perform each calculation to the correct number of...Ch. 2 - Correct any answers that have the incorrect number...Ch. 2 - Correct any answers that have the incorrect number...Ch. 2 - Perform each calculation to the correct number of...Ch. 2 - 66. Perform each calculation to the correct number...Ch. 2 - Correct any answers that have the incorrect number...Ch. 2 - Correct any answers that have the incorrect number...Ch. 2 - Perform each conversion. a.3.55 kg to grams b.8944...Ch. 2 - Perform each conversion. a.155.5 cm to meters...Ch. 2 - Perform each conversion. a.5.88 dL to liters b....Ch. 2 - 72. Perform each conversion.
a.1.08 Mm to...Ch. 2 - Perform each conversion. a. 22.5 in. to...Ch. 2 - Perform each conversion. a. 78.3 in. to...Ch. 2 - Perform each conversion. a.40.0 cm to inches b....Ch. 2 - 76. Perform each conversion.
a.254 cm to inches
b....Ch. 2 - 77. Complete the...Ch. 2 - 78. Complete the...Ch. 2 - 79. Convert g to each unit.
a.kg
b.Mg
c.mg
d....Ch. 2 - Convert 188106 g to each unit. a. mg b. cg c. ng...Ch. 2 - A student loses 3.3 lb in one month. How many...Ch. 2 - 82. A student gains 1.9 lb in two weeks. How many...Ch. 2 - A runner wants to run 10.0 km. She knows that her...Ch. 2 - A cyclist rides at an average speed of 24 mi/h. If...Ch. 2 - 85. A recipe calls for 5.0 qt of milk. What is...Ch. 2 - A gas can hold 2.0 gal of gasoline. What is this...Ch. 2 - 87. Fill in the blanks.
a.
b.
c.
Ch. 2 - Prob. 88ECh. 2 - The hydrogen atom has a volume of approximately...Ch. 2 - 90. Earth has a surface area of 197 million square...Ch. 2 - 91. A house has an area of What is its area in...Ch. 2 - A classroom has a volume of 285m3. What is its...Ch. 2 - Total U.S farmland occupies 954 million acres. How...Ch. 2 - 94. Total average U.S farm occupies 435 acres. How...Ch. 2 - A sample of an unknown metal has a mass of 35.4...Ch. 2 - A new penny has a mass 2.49 g and a valume of...Ch. 2 - Glycerol is a syrupy liquid often used in...Ch. 2 - 102. An aluminum engine block has a valume of 4.77...Ch. 2 - A supposedly gold crown is tested to determine its...Ch. 2 - 104. A vase is said to be solid platinum. It...Ch. 2 - Ethylene glycol (antifreeze) has a density of...Ch. 2 - Acetone (fingernailpolish remover) has density of...Ch. 2 - A thief uses a bag of sand to replace a gold...Ch. 2 - One of the particles in an atom is the proton. A...Ch. 2 - A block of metal has a volume 13.4in.3 and weight...Ch. 2 - 110. A log is either oak or pine. it displaces 2.7...Ch. 2 - 111. The density of aluminum is . What is its...Ch. 2 - 112. The density of platinum is . What is its...Ch. 2 - A typical backyard swimming pool holds 150 yd3 of...Ch. 2 - 114. An iceberg has a volume of . What is the mass...Ch. 2 - The mass of fuel in an airplane must be determined...Ch. 2 - Prob. 112ECh. 2 - Honda produces a hybrid electric car called the...Ch. 2 - You rent a car in Germany with a gas mileage...Ch. 2 - Prob. 115ECh. 2 - 120. A hybrid SUV consumes fuel at a rate of 12.8...Ch. 2 - Prob. 117ECh. 2 - Consider these observations on two blocks of...Ch. 2 - 123. You measure the masses and volumes of two...Ch. 2 - A bag contains a mixture of copper and lead BBs....Ch. 2 - Prob. 121ECh. 2 - A copper cube has a mass of 87.2 g. Find the edge...Ch. 2 - 127. Recall from Section 2.1 that NASA lost the...Ch. 2 - 28. A NASA satellite showed that in 2012 the ozone...Ch. 2 - 129. In 1999, scientists discovered a new class of...Ch. 2 - 130. A titanium bicycle frame contains the same...Ch. 2 - 132. The following statements are all true.
a....Ch. 2 - Convert the height of each group member from feet...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Determine the number of significant figures in each measurement. a. 508.0 L c. 1.0200 × 1 0 5 kgb. 820,400.0 L d. 807,000 kgarrow_forward3. Provide the answer with the appropriate number of significant figures. a. 6.03 x 650 b. 2.7 x 1031.645 c. 3.000 + 7.61 + 124.2 d. (3.55 x 109) x (9.5 x 10-7) e. 7.845 - 1.20 f. 7.845- 1.2 g. (6.72 x 106 ) - (4.32 x 10“ )arrow_forwardWhich number is 3 significant digits? A. 1.1100 B. 1.37 C. 0.01 D. 0.005arrow_forward
- 1) The density of a material can be used to calculate the volume of an object if its mass is known. Likewise, the mass can be calculated if the density and volume are known. A pre-1964 quarter, made predominantly of silver (density= 10.5 g/mL), was determined to have a mass of 6.25 g. What is the volume of a quarter? A. 65.6 B. 0.595 mL C. 1.68 mL D. 6.25 mL 2) Add: 2.11 + 104.056 + 0.1205 A. 106 B. 106.29 C. 106.286 D. 106.2865arrow_forwardCount the significant figures of each quantity. a. 579.420 b. 3.14159265 c. 2 × 1011 d. 50.1 e. 3800arrow_forwardA house has an area of 195 m2. What is its area in each unit?a. km2 b. dm2 c. cm2arrow_forward
- Assume you measured an irregular shaped object in a beaker to be 149.167 g, and you know that the empty beaker weighs 96.222 g. You then carefully drop this object in a graduated cylinder containing 20.0 mL of water, and the water level rises to 42.3 mL. Calculate the final density of the irregular shaped object to the correct number of significant figures. a. 1.25 b. 2.37 c. 7.46 d. 4.31 e. 3.53arrow_forward8. Which quantity represents the smallest mass? A. 1.5 x 10-2 mg B. 1500 g C. 1.5 x 10³ µg D. 1.5 x 10-2 kg F All of them are equivalent massesarrow_forwardConvert each number to its standard form. a. 3.4 × 10 8 b. 5.822 × 10 −5 c. 3 × 10 2 d. 6.86 × 10 −8arrow_forward
- Round each figure to three significant figures.a. 0.003210 g d. 25.38 Lb. 3.8754 kg e. 0.08763 cmc. 219,034 m f. 0.003109 mgarrow_forwardUse scientific notation to express each quantity with only base units (no prefix multipliers).a. 35 mL b. 225 Mm c. 133 Tg d. 1.5 cgarrow_forwardRound each of the following numbers to two significant figures.a. 6.2262 b. 3895 c. 6.885 d. 2.2247 e. 0.0004109arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
ChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill Education
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill Education
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY
Types of Matter: Elements, Compounds and Mixtures; Author: Professor Dave Explains;https://www.youtube.com/watch?v=dggHWvFJ8Xs;License: Standard YouTube License, CC-BY