Basic Chemistry (5th Edition)
5th Edition
ISBN: 9780134138046
Author: Karen C. Timberlake
Publisher: PEARSON
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Question
Chapter 2, Problem 2.105AQAP
Interpretation Introduction
(a)
Interpretation:
The value 0.00001258 L needs to be round off up to three significant figures.
Concept Introduction:
The following rules needs to be followed to determine the correct number of significant figures in a given number:
- All non-zero digits are significant.
- Trailing zeros after decimal are significant.
- All zeros in between two non-zero or significant figures are significant.
Rules for rounding off numbers are as follows:
- If the digit to be rounded off is followed by digit greater than 5, the number will be rounded up.
- If the digit to be rounded off is followed by digit zero or less than 5, the number will be rounded down.
- If the digit to be rounded off is followed by digit 5 and it is even, then it will remain the same, but if the digit is odd, it will be rounded up to get an even number.
For example: Rounding off number 38, the first digit is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.
For example: Rounding off number 33, the first digit is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.
Interpretation Introduction
(b)
Interpretation:
The value
Concept Introduction:
The following rules needs to be followed to determine the number of significant figures:
- All non-zero digits are significant.
- Trailing zeros after decimal are significant.
- All zeros in between two non-zero or significant figures are significant.
Rules for rounding off numbers are as follows:
- If the digit to be rounded off is followed by digit greater than 5, the number will be rounded up.
- If the digit to be rounded off is followed by digit zero or less than 5, the number will be rounded down.
- If the digit to be rounded off is followed by digit 5 and it is even, then it will remain the same, but if the digit is odd, it will be rounded up to get an even number.
For example: Rounding off number 38, the first digit is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.
For example: Rounding off number 33, the first digit is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.
Interpretation Introduction
(c)
Interpretation:
The value
Concept Introduction:
The following rules needs to be followed to determine the number of significant figures:
- All non-zero digits are significant.
- Trailing zeros after decimal are significant.
- All zeros in between two non-zero or significant figures are significant.
Rules for rounding off numbers are as follows:
- If the digit to be rounded off is followed by digit greater than 5, the number will be rounded up.
- If the digit to be rounded off is followed by digit zero or less than 5, the number will be rounded down.
- If the digit to be rounded off is followed by digit 5 and it is even, then it will remain the same, but if the digit is odd, it will be rounded up to get an even number.
For example: Rounding off number 38, the first digit is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.
For example: Rounding off number 33, the first digit is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.
Interpretation Introduction
(d)
Interpretation:
The value
Concept Introduction:
The following rules needs to be followed to determine the number of significant figures:
- All non-zero digits are significant.
- Trailing zeros after decimal are significant.
- All zeros in between two non-zero or significant figures are significant.
Rules for rounding off numbers are as follows:
- If the digit to be rounded off is followed by digit greater than 5, the number will be rounded up.
- If the digit to be rounded off is followed by digit zero or less than 5, the number will be rounded down.
- If the digit to be rounded off is followed by digit 5 and it is even, then it will remain the same, but if the digit is odd, it will be rounded up to get an even number.
For example: Rounding off number 38, the first digit is followed by digit 8 which is greater than 5 thus; the number will be rounded up to the nearest ten that is 40.
For example: Rounding off number 33, the first digit is followed by digit 3 which is less than 5 thus; the number will be rounded down to the nearest ten that is 30.
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Chapter 2 Solutions
Basic Chemistry (5th Edition)
Ch. 2.1 - Give the abbreviation for each of the following:...Ch. 2.1 - Give the abbreviation for each of the following:...Ch. 2.1 - Prob. 2.3QAPCh. 2.1 - State the type of measurement in each of the...Ch. 2.1 - State the name of the unit and the type of...Ch. 2.1 - Prob. 2.6QAPCh. 2.1 - Prob. 2.7QAPCh. 2.1 - Prob. 2.8QAPCh. 2.2 - What is the estimated digit in each of the...Ch. 2.2 - What is the estimated digit in each of the...
Ch. 2.2 - Identify the numbers in each of the following...Ch. 2.2 - Identify the numbers in each of the following...Ch. 2.2 - Identify the measured number(s), ifany, in each of...Ch. 2.2 - Identify the exact number(s), if any, in each of...Ch. 2.2 - Prob. 2.15QAPCh. 2.2 - Prob. 2.16QAPCh. 2.2 - Prob. 2.17QAPCh. 2.2 - Prob. 2.18QAPCh. 2.2 - Prob. 2.19QAPCh. 2.2 - Prob. 2.20QAPCh. 2.2 - Prob. 2.21QAPCh. 2.2 - 2.22 Write each of the following in scientific...Ch. 2.2 - Prob. 2.23QAPCh. 2.2 - Prob. 2.24QAPCh. 2.3 - Prob. 2.25QAPCh. 2.3 - Prob. 2.26QAPCh. 2.3 - Round off each of the following measurements to...Ch. 2.3 - Round off each of the following measurements to...Ch. 2.3 - Prob. 2.29QAPCh. 2.3 - Prob. 2.30QAPCh. 2.3 - Prob. 2.31QAPCh. 2.3 - Perform each of the following calculations, and...Ch. 2.3 - Prob. 2.33QAPCh. 2.3 - Perform each of the following calculations, and...Ch. 2.4 - Prob. 2.35QAPCh. 2.4 - In a French car, the odometer reads 22269. What...Ch. 2.4 - Prob. 2.37QAPCh. 2.4 - Prob. 2.38QAPCh. 2.4 - Prob. 2.39QAPCh. 2.4 - Prob. 2.40QAPCh. 2.4 - Prob. 2.41QAPCh. 2.4 - Prob. 2.42QAPCh. 2.4 - Prob. 2.43QAPCh. 2.4 - Prob. 2.44QAPCh. 2.4 - Prob. 2.45QAPCh. 2.4 - Prob. 2.46QAPCh. 2.4 - For each of the following pairs, which is the...Ch. 2.4 - Prob. 2.48QAPCh. 2.5 - Why can two conversion factors be written for an...Ch. 2.5 - Prob. 2.50QAPCh. 2.5 - Prob. 2.51QAPCh. 2.5 - Write the equality and two conversion factors for...Ch. 2.5 - Prob. 2.53QAPCh. 2.5 - Prob. 2.54QAPCh. 2.5 - Prob. 2.55QAPCh. 2.5 - Write the equality and two conversion factors, and...Ch. 2.5 - Write the equality and conversion factors, and...Ch. 2.5 - Prob. 2.58QAPCh. 2.5 - Prob. 2.59QAPCh. 2.5 - Prob. 2.60QAPCh. 2.6 - When you convert one unit to another, how do you...Ch. 2.6 - Prob. 2.62QAPCh. 2.6 - Prob. 2.63QAPCh. 2.6 - 2.64 Perform each of the following conversions...Ch. 2.6 - Prob. 2.65QAPCh. 2.6 - Prob. 2.66QAPCh. 2.6 - Prob. 2.67QAPCh. 2.6 - Use metric conversion factors to solve each of the...Ch. 2.6 - Prob. 2.69QAPCh. 2.6 - Prob. 2.70QAPCh. 2.6 - Prob. 2.71QAPCh. 2.6 - Using conversion factors, solve each of me...Ch. 2.6 - Prob. 2.73QAPCh. 2.6 - Using conversion factors, solve each of the...Ch. 2.6 - Prob. 2.75QAPCh. 2.6 - Prob. 2.76QAPCh. 2.7 - Prob. 2.77QAPCh. 2.7 - Determine the density (g/mL) for each of the...Ch. 2.7 - Prob. 2.79QAPCh. 2.7 - Prob. 2.80QAPCh. 2.7 - Prob. 2.81QAPCh. 2.7 - Prob. 2.82QAPCh. 2.7 - Prob. 2.83QAPCh. 2.7 - Prob. 2.84QAPCh. 2.7 - Prob. 2.85QAPCh. 2.7 - Prob. 2.86QAPCh. 2.7 - Prob. 2.87QAPCh. 2.7 - Solve each of the following problems: A glucose...Ch. 2 - Prob. 2.89FUCh. 2 - Prob. 2.90FUCh. 2 - Prob. 2.91UTCCh. 2 - Prob. 2.92UTCCh. 2 - Prob. 2.93UTCCh. 2 - Prob. 2.94UTCCh. 2 - Prob. 2.95UTCCh. 2 - Prob. 2.96UTCCh. 2 - Prob. 2.97UTCCh. 2 - Prob. 2.98UTCCh. 2 - Prob. 2.99UTCCh. 2 - Prob. 2.100UTCCh. 2 - Consider the following solids. The solids A, B,...Ch. 2 - Prob. 2.102UTCCh. 2 - Prob. 2.103UTCCh. 2 - Prob. 2.104UTCCh. 2 - Prob. 2.105AQAPCh. 2 - Prob. 2.106AQAPCh. 2 - A dessert contains 137 25 g of vanilla ice cream....Ch. 2 - Prob. 2.108AQAPCh. 2 - Prob. 2.109AQAPCh. 2 - Prob. 2.110AQAPCh. 2 - Prob. 2.111AQAPCh. 2 - Prob. 2.112AQAPCh. 2 - Prob. 2.113AQAPCh. 2 - Prob. 2.114AQAPCh. 2 - Prob. 2.115AQAPCh. 2 - A graduated cylinder contains 155 mL of water. A...Ch. 2 - Prob. 2.117AQAPCh. 2 - Prob. 2.118AQAPCh. 2 - Prob. 2.119AQAPCh. 2 - Prob. 2.120AQAPCh. 2 - Prob. 2.121AQAPCh. 2 - Prob. 2.122AQAPCh. 2 - Prob. 2.123AQAPCh. 2 - Prob. 2.124AQAPCh. 2 - Prob. 2.125CQCh. 2 - Prob. 2.126CQCh. 2 - Prob. 2.127CQCh. 2 - Prob. 2.128CQCh. 2 - Prob. 2.129CQCh. 2 - Prob. 2.130CQCh. 2 - Prob. 2.131CQCh. 2 - Prob. 2.132CQCh. 2 - Prob. 2.133CQCh. 2 - Prob. 2.134CQCh. 2 - Prob. 2.135CQCh. 2 - Prob. 2.136CQ
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