
(a)
Interpretation: The number of significant figures needs to be determined.
Concept Introduction : Significant figures of a number are termed as digits which contribute to the precision of that number. Any measurement involves an estimate and thus is uncertain to some extent. A reliably identified digit used to find a decimal point is known as significant figure.
(a)

Answer to Problem 6RQ
The significant figure in
Explanation of Solution
The number of meaningful digits in a calculated quantity is known as significant figures. All non- zero digits are significant and leading zeros are never count as significant but captive zeros are significant.
If in any number the zero present between the non-zeros numbers so it is considered as significant.
When zeros are present left of all non-zero numbers then zero is considered as not significant.
If a decimal is present with non-zeros number and zero is present to the right of all non-zero numbers then zero is considered as significant.
The given calculation can be performed as follows:
(b)
Interpretation: The number of significant figures needs to be determined.
Concept Introduction : Significant figures of a number are termed as digits which contribute to the precision of that number.Any measurement involves an estimate and thus is uncertain to some extent. A reliably identified digit used to find a decimal point is known as significant figure.
(b)

Answer to Problem 6RQ
The significant figure in
Explanation of Solution
The number of meaningful digits in a calculated quantity is known as significant figures. All non- zero digits are significant and leading zeros are never count as significant but captive zeros are significant.
If in any number the zero present between the non-zeros numbers so it is considered as significant.
When zeros are present left of all non-zero numbers then zero is considered as not significant.
If a decimal is present with non-zeros number and zero is present to the right of all non-zero numbers then zero is considered assignificant.
(c)
Interpretation: The number of significant figures needs to be determined.
Concept Introduction : Significant figures of a number are termed as digits which contribute to the precision of that number.Any measurement involves an estimate and thus is uncertain to some extent. A reliably identified digit used to find a decimal point is known as significant figure.
(c)

Answer to Problem 6RQ
The significant figure in
Explanation of Solution
The number of meaningful digits in a calculated quantity is known as significant figures. All non- zero digits are significant and leading zeros are never count as significant but captive zeros are significant.
If in any number the zero present between the non-zeros numbers so it is considered as significant.
When zeros are present left of all non-zero numbers then zero is considered as not significant.
If a decimal is present with non-zeros number and zero is present to the right of all non-zero numbers then zero is considered as significant.
The given calculation is as follows:
The given number is rounded as follows:
(d)
Interpretation: The number of significant figures needs to be determined.
Concept Introduction : Significant figures of a number are termed as digits which contribute to the precision of that number.Any measurement involves an estimate and thus is uncertain to some extent. A reliably identified digit used to find a decimal point is known as significant figure.
(d)

Answer to Problem 6RQ
The significant figure in
Explanation of Solution
The number of meaningful digits in a calculated quantity is known as significant figures. All non- zero digits are significant and leading zeros are never count as significant but captive zeros are significant.
If in any number the zero present between the non-zeros numbers so it is considered as significant.
When zeros are present left of all non-zero numbers then zero is considered as not significant.
If a decimal is present with non-zeros number and zero is present to the right of all non-zero numbers then zero is considered as significant.
The given measurement is as follows:
The above number can be rounded as follows:
Chapter 5 Solutions
World of Chemistry, 3rd edition
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