Chapter 0.9, Problem 0.9P

(a)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.

(b)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.

(c)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.

(d)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.

(e)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.

(f)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.

(g)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.

(h)

Interpretation Introduction

Interpretation:

The number of significant figures in the given quantity has to be expressed and explained.

Concept Introduction:

Significant figures:

The total number of digits that are recorded for a measurement is named as measurements of number of significant figures.

Rules for significant figures:

1. 1) Zero present in the middle of number are always significant

   Example: The number of significant figures in $\text{4}\text{.803 cm}$ is four.

2. 2) Zero present at the starting of a number are non-significant, they act to find the decimal point.

   Example: The number of significant figures in $\text{0}\text{.0061g}$ is three.

3. 3) Zero present at the end of the number and after a decimal point are significant.

   Example: The number of significant figures in $\text{55}\text{.220 K}$ is five.

4. 4) Zero present at the end of the number and before a decimal point are non-significant.

   Example: The number of significant figures in $\text{34,200}$ m may be three, four or five.