CHEMISTRY:MOLECULAR NATURE (LL)W/ACCESS
7th Edition
ISBN: 9781119497325
Author: JESPERSEN
Publisher: WILEY
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Question
Chapter 1, Problem 58RQ
Interpretation Introduction
Interpretation:
The numbers that have a finite number of significant figures and exact number are to be determined.
Concept Introduction:
The digits that carry a meaning contributing to its measurement, which are denoted in scientific notation, are called significant figures.
The rule applied for calculating the number of significant digits is different for multiplication/division and addition/subtraction.
The digits or numbers that carry a certain and definite measurements are called exact numbers.
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Which of the following include exact numbers?(a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792×108 m/s.(b) The density of mercury at 25°C is 13.53 g/mL.(c) There are 3600 s in 1 h.(d) In 2010, the United States had 50 states.
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Which of the following include exact numbers?(a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792X10⁸m/s.(b) The density of mercury at 25°C is 13.53 g/mL.(c) There are 3600 s in 1 h.(d) In 2003, the United States had 50 states.
Chapter 1 Solutions
CHEMISTRY:MOLECULAR NATURE (LL)W/ACCESS
Ch. 1 - Practice Exercise 1.1
What is the process of the...Ch. 1 - Practice Exercise 1.2
Classify the following as an...Ch. 1 - Practice Exercise 1.3
Each of the following can be...Ch. 1 - Practice Exercise 1.4
Each of these properties can...Ch. 1 - Prob. 5PECh. 1 - Prob. 6PECh. 1 - What is 355CinF? (Hint: What tool relates these...Ch. 1 - Convert 55F to its Celsius temperature. What...Ch. 1 - Prob. 9PECh. 1 - Perform the following calculations involving...
Ch. 1 - Practice Exercise 1.11
Use dimensional analysis to...Ch. 1 - Use dimensional analysis to perform the following...Ch. 1 - A 15.0 mL sample of polystyrene used in insulated...Ch. 1 - Practice Exercise 1.14
A crystal of salt was grown...Ch. 1 - A gold-colored metal object has a mass of 365 g...Ch. 1 - Practice Exercise 1.16
A certain metal alloy has a...Ch. 1 - Practice Exercise 1.17
Table wines have a minimum...Ch. 1 - Practice Exercise 1.18
Diabetes can cause a...Ch. 1 - After some thought, give two reasons why a course...Ch. 1 - What steps are involved in the scientific method?Ch. 1 - Prob. 3RQCh. 1 - Can a theory be proved to be correct? Can a theory...Ch. 1 - 1.5 Define matter. Which are examples of matter?...Ch. 1 - Define (a) element, (b) compound, (c) mixture, (d)...Ch. 1 - 1.7 Which kind of change, chemical or physical, is...Ch. 1 - Prob. 8RQCh. 1 - 1.9 What is the name of each of the following...Ch. 1 - For each of the following molecular pictures,...Ch. 1 - 1.11 Consider the following four samples of...Ch. 1 - 1.12 What is a physical change? What is a chemical...Ch. 1 - 1.13 “A sample of calcium (an electrically...Ch. 1 - 1.14 In places like Saudi Arabia, freshwater is...Ch. 1 - How does a chemical property differ from a...Ch. 1 - Distinguish between an extensive and an intensive...Ch. 1 - Determine whether each of the following is an...Ch. 1 - Describe one or more physical properties of each...Ch. 1 - Why must measurements always be written with a...Ch. 1 - What is the only SI base unit that includes a...Ch. 1 - Which SI units are mainly used in chemistry?Ch. 1 - What are derived units? Give two examples of...Ch. 1 - What is the meaning of each of the following...Ch. 1 - What reference points do we use in calibrating the...Ch. 1 - In each pair, which is larger: (a) A Fahrenheit...Ch. 1 - 1.26 Define the term significant figures.
Ch. 1 - Explain how to round numbers.Ch. 1 - What is the difference between accuracy and...Ch. 1 - 1.29 Suppose a length had been reported to be...Ch. 1 - What is the difference between the treatment of...Ch. 1 - When constructing a conversion factor between two...Ch. 1 - Suppose someone suggested using the fraction 3...Ch. 1 - In 1 hour there are 3600 seconds. By what...Ch. 1 - If you were to convert the measured length 4.165...Ch. 1 - 1.35 Write the equation that defines density....Ch. 1 - Compare density and specific gravity. What is the...Ch. 1 - 1.37 Give four sets of units for density. What...Ch. 1 - 1.38 Silver has a density of . Express this as an...Ch. 1 - Determine whether each of the following is a...Ch. 1 - 1.40 Determine whether each of the following is a...Ch. 1 - At room temperature, what is the state of each of...Ch. 1 - At room temperature, determine the appropriate...Ch. 1 - What number should replace the question mark in...Ch. 1 - 1.44 What numbers should replace the question...Ch. 1 - Perform the following conversions. (a) 57CtoF (b)...Ch. 1 - Perform the following conversions. (a) 98FtoC (b)...Ch. 1 - The temperature of the core of the sun is...Ch. 1 - Natural gas is mostly methane, a substance that...Ch. 1 - A healthy dog has a temperature ranging from...Ch. 1 - Prob. 50RQCh. 1 - The length of a wire was measured using two...Ch. 1 - What are the temperatures being measured in the...Ch. 1 - 1.53 How many significant figures do the following...Ch. 1 - How many significant figures do the following...Ch. 1 - 1.55 Perform the following arithmetic and round...Ch. 1 - 1.56 Perform the following arithmetic and round...Ch. 1 - Which are exact numbers and which ones have a...Ch. 1 - Prob. 58RQCh. 1 - 1.59 Perform the following conversions.
Ch. 1 - 1.60 Perform the following conversions.
Ch. 1 - 1.61 Perform the following conversions. If...Ch. 1 - 1.62 Perform the following conversions. If...Ch. 1 - 1.63 Perform the following conversions....Ch. 1 - Prob. 64RQCh. 1 - The human stomach can expand to hold up to 4.2...Ch. 1 - In the movie Cool Hand Luke (1967), Luke wagers...Ch. 1 - 1.67 The winds in a hurricane can reach almost 200...Ch. 1 - 1.68 A bullet is fired at a speed of 2435 ft/s....Ch. 1 - 1.69 A bullet leaving the muzzle of a pistol was...Ch. 1 - 1.70 On average, water flows over Niagara Falls at...Ch. 1 - Prob. 71RQCh. 1 - *1.72 One degree of latitude on the earth’s...Ch. 1 - Calculate the density of kerosene, in g/mL, if its...Ch. 1 - Calculate the density of magnesium, in g/cm3, if...Ch. 1 - Acetone, the solvent in some nail polish removers,...Ch. 1 - A glass apparatus contains 26.223 g of water when...Ch. 1 - 1.77 Chloroform, a chemical once used as an...Ch. 1 - Gasolines density is about 0.65 g/mL. How much...Ch. 1 - Prob. 79RQCh. 1 - Prob. 80RQCh. 1 - The space shuttle uses liquid hydrogen as its...Ch. 1 - Prob. 82RQCh. 1 - 1.83 Some time ago, a U.S. citizen traveling in...Ch. 1 - Driving to work one day, one of the authors of...Ch. 1 - Prob. 85RQCh. 1 - Prob. 86RQCh. 1 - Prob. 87RQCh. 1 - A pycnometer is a glass apparatus used for...Ch. 1 - 1.89 Radio waves travel at the speed of light, ....Ch. 1 - Prob. 90RQCh. 1 - Prob. 91RQCh. 1 - Aerogel or solid smoke" is a novel material that...Ch. 1 - A liquid known to be either ethanol (ethyl...Ch. 1 - An unknown liquid was found to have a density of...Ch. 1 - 1.95 There exists a single temperature at which...Ch. 1 - In the text, the Kelvin scale of temperature is...Ch. 1 - Density measurements can be used to analyze...Ch. 1 - An artist's statue has a surface area of 14.6ft2....Ch. 1 - What is the volume in cubic millimeters of a 3.54...Ch. 1 - 1.100 A solution is defined as a uniform mixture...Ch. 1 - How do you know that Coca-Cola is not a compound?...Ch. 1 - Find two or more web sites that give the values...Ch. 1 - 1.103 Reference books such as the Handbook of...Ch. 1 - A student used a 250 mL graduated cylinder having...Ch. 1 - Prob. 105RQCh. 1 - Gold has a density of 19.31gcm-3. How many grams...Ch. 1 - A Boeing 747 jet airliner carrying 568 people...Ch. 1 - *1.108 Download a table of data for the density of...Ch. 1 - List the physical and chemical properties...Ch. 1 - Prob. 110RQ
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