Concept explainers
(a)
Interpretation:
In
Concept introduction:
Significant figures of a number are the digits which carry meaningful contribution to its measurement resolution. The rightmost digit of the quantity is the most uncertain digit.
The number of certain and uncertain digit in a quantity is considered as significant figures. The digit with a higher number of significant figures has a higher certainty of measurement.
To determine the number of significant figures in a quantity following steps are followed.
1. The quantity must has a decimal point.
2. Start counting from the left and proceed towards the right until the first nonzero digit is encountered. All nonzero digit and the zeroes between two nonzero digits are considered as significant figures. For example, 0.0000765 has three significant figures and 7009 has four significant figures.
3. Zeroes after a decimal point are significant figures. For example, 42.0 have three significant figures.
4. Trailing zeroes that do nothing but are used to set a decimal point are non-significant figures. However, exponential notation can be used to avoid confusion. For example, 4300 has 3 significant figures. It can be expressed in scientific notation as
5. Zeroes present before a trailing decimal point are significant figures. For example, 3200 has only two significant figures but 3200. has 4 significant figures.
(b)
Interpretation:
In
Concept introduction:
Significant figures of a number are the digits which carry meaningful contribution to its measurement resolution. The rightmost digit of the quantity is the most uncertain digit.
The number of certain and uncertain digit in a quantity is considered as significant figures. The digit with a higher number of significant figures has a higher certainty of measurement.
To determine the number of significant figures in a quantity following steps are followed.
1. The quantity must has a decimal point.
2. Start counting from the left and proceed towards the right until the first nonzero digit is encountered. All nonzero digit and the zeroes between two nonzero digits are considered as significant figures. For example, 0.0000765 has three significant figures and 7009 has four significant figures.
3. Zeroes after a decimal point are significant figures. For example, 42.0 have three significant figures.
4. Trailing zeroes that do nothing but are used to set a decimal point are non-significant figures. However, exponential notation can be used to avoid confusion. For example, 4300 has 3 significant figures. It can be expressed in scientific notation as
5. Zeroes present before a trailing decimal point are significant figures. For example, 3200 has only two significant figures but 3200. has 4 significant figures.
(c)
Interpretation:
In
Concept introduction:
Significant figures of a number are the digits which carry meaningful contribution to its measurement resolution. The rightmost digit of the quantity is the most uncertain digit.
The number of certain and uncertain digit in a quantity is considered as significant figures. The digit with a higher number of significant figures has a higher certainty of measurement.
To determine the number of significant figures in a quantity following steps are followed.
1. The quantity must has a decimal point.
2. Start counting from the left and proceed towards the right until the first nonzero digit is encountered. All nonzero digit and the zeroes between two nonzero digits are considered as significant figures. For example, 0.0000765 has three significant figures and 7009 has four significant figures.
3. Zeroes after a decimal point are significant figures. For example, 42.0 have three significant figures.
4. Trailing zeroes that do nothing but are used to set a decimal point are non-significant figures. However, exponential notation can be used to avoid confusion. For example, 4300 has 3 significant figures. It can be expressed in scientific notation as
5. Zeroes present before a trailing decimal point are significant figures. For example, 3200 has only two significant figures but 3200. has 4 significant figures.
(d)
Interpretation:
In
Concept introduction:
Significant figures of a number are the digits which carry meaningful contribution to its measurement resolution. The rightmost digit of the quantity is the most uncertain digit.
The number of certain and uncertain digit in a quantity is considered as significant figures. The digit with a higher number of significant figures has a higher certainty of measurement.
To determine the number of significant figures in a quantity following steps are followed.
1. The quantity must has a decimal point.
2. Start counting from the left and proceed towards the right until the first nonzero digit is encountered. All nonzero digit and the zeroes between two nonzero digits are considered as significant figures. For example, 0.0000765 has three significant figures and 7009 has four significant figures.
3. Zeroes after a decimal point are significant figures. For example, 42.0 have three significant figures.
4. Trailing zeroes that do nothing but are used to set a decimal point are non-significant figures. However, exponential notation can be used to avoid confusion. For example, 4300 has 3 significant figures. It can be expressed in scientific notation as
5. Zeroes present before a trailing decimal point are significant figures. For example, 3200 has only two significant figures but 3200. has 4 significant figures.
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Chapter 1 Solutions
CHEMISTRY:MOLEC NAT PRINT COMPANION
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- Nonearrow_forward3. Which one of the following is the lowest energy, most stable conformation of 1-bromopropane? H H H H H H H H CH3 HH Br H CH3 b b b b b CH3 A Br Br H H B CH3 Br H C H H H D CH3 H Br H E Harrow_forwardIn evolution, migration refers to the movement of alleles between populations. In your drawings, compare and contrast migration in evolutionary terms vs. in ecological terms. True Falsearrow_forward
- Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic step(s). Be sure to account for all bond-breaking and bond-making steps. Problem 31 I 1 :0: O: C 1 1 H Na Select to Add Arrows CH3CH2CCNa 1arrow_forwardgiven asp ...arrow_forwardNonearrow_forward
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