Chapter PSS, Problem 13E

Interpretation Introduction

(a)

Interpretation:

The number of significant digits in $\text{0}\text{.5}\text{cm}$ is to be stated.

Concept introduction:

All non-zero digits are significant digits. The significant digits are taken by counting the digits from left to right and starting from the first non zero digit. There are two rules that describes the counting of significant digits,

(1) Count the significant digits starting with the first non-zero digit.

(2) In significant digits placeholder zero will not be counted.

Interpretation Introduction

(b)

Interpretation:

The number of significant digits in $\text{1055}\text{}\text{g}$ is to be stated.

Concept introduction:

All non-zero digits are significant digits. The significant digits are taken by counting the digits from left to right and starting from the first non zero digit. There are two rules that describes the counting of significant digits,

(1) Count the significant digits starting with the first non-zero digit.

(2) In significant digits placeholder zero will not be counted.

Interpretation Introduction

(c)

Interpretation:

The number of significant digits in $\text{1}\text{.2}\times {\text{10}}^0\text{mL}$ is to be stated.

Concept introduction:

All non-zero digits are significant digits. The significant digits are taken by counting the digits from left to right and starting from the first non zero digit. There are two rules that describes the counting of significant digits,

(1) Count the significant digits starting with the first non-zero digit.

(2) In significant digits placeholder zero will not be counted.

Interpretation Introduction

(d)

Interpretation:

The number of significant digits of $\text{4}\text{.50}\times {\text{10}}^1\text{s}$ is to be stated.

Concept introduction:

All non-zero digits are significant digits. The significant digits are taken by counting the digits from left to right and starting from the first non zero digit. There are two rules that describes the counting of significant digits,

(1) Count the significant digits starting with the first non-zero digit.

(2) In significant digits placeholder zero will not be counted.