Chemistry
14th Edition
ISBN: 9781264243709
Author: Chang, Raymond
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Question
Chapter 1, Problem 1.35QP
(a)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(a)
Expert Solution
Answer to Problem 1.35QP
(a)
The number of significant figures is four.
Explanation of Solution
Given measurement is
The number of significant figures is four.
Totally four numbers are nonzero numbers. So, the number of significant figure is four.
(b)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(b)
Expert Solution
Answer to Problem 1.35QP
(b)
The number of significant figures is two.
Explanation of Solution
Given measurement is
The number of significant figures is two.
Totally two numbers are nonzero numbers. So, the number of significant figure is two.
(c)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(c)
Expert Solution
Answer to Problem 1.35QP
(c)
The number of significant figures is five.
Explanation of Solution
Given measurement is
The number of significant figures is five.
Totally five numbers are nonzero numbers. So, the number of significant figure is five.
(d)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(d)
Expert Solution
Answer to Problem 1.35QP
(d)
The number of significant figures is two.
Explanation of Solution
Given measurement is
The scientific notation for the given measurement is
Totally two numbers are nonzero numbers. So, the number of significant figure is two.
(e)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(e)
Expert Solution
Answer to Problem 1.35QP
(e)
The number of significant figures is three.
Explanation of Solution
Given measurement is
The number of significant figures is three.
Totally three numbers are non-zero numbers are there (zero is placed in between two nonzero number). So, the number of significant figure is three.
(f)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(f)
Expert Solution
Answer to Problem 1.35QP
(f)
The number of significant figures is one.
Explanation of Solution
Given measurement is
The number of significant figures is one.
Only one number is a nonzero number (zeros are placed before the nonzero number). So, the number of significant figure is one.
(g)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(g)
Expert Solution
Answer to Problem 1.35QP
(g)
The number of significant figures is one.
Explanation of Solution
Given measurement is
The number of significant figures is one.
Only one number is a nonzero number (zeros are placed before the nonzero number). So, the number of significant figure is one.
(h)
Interpretation Introduction
Interpretation:
For the given set of measurements the significant figures has to be determined.
Concept introduction:
Significant figures: The digits having a meaning in a given number are called as significant figures.
Significant figures – calculation rules
- Significant figure is a non-zero number (4443.2 has five significant figures)
- Zeros placement in between non-zero number are significant figures (40005 has five significant figures).
- Zeros before the non-zero number are not significant number (0.00040005 has five significant figures).
- Zeros after the non-zero number are significant in case of that number contains decimal point (4.5000 has five significant figures).
- Zeros after the non-zero number may or may not be a significant figure in case of that number does not have a decimal point (500 may have 1, 2 or 3 significant figures). In this cases use scientific notation to avoid ambiguity.
To give: The significant figures for the given measurement
(h)
Expert Solution
Answer to Problem 1.35QP
(h)
The number of significant figures is two.
Explanation of Solution
Given measurement is
The number of significant figures is two.
Totally two numbers are nonzero numbers. So, the number of significant figure is two.
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Chapter 1 Solutions
Chemistry
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