Chapter 5, Problem 63A

(a)

Interpretation Introduction

Interpretation:

The number of significant figures and uncertainty is to be discussed by using the given glassware’s sample measurement.

Concept Introduction :

Significant figures are those digits that have a meaning in the given number.

Answer to Problem 63A

The sample reading would be $\text{4}\text{.0 mL}$ with uncertainty $\pm 0.1$ and there are two significant figures.

Explanation of Solution

The volume readings are estimated with uncertainty of $\pm 1$ to the one decimal place of the estimated value. So, the sample measurement is $\text{4}\text{.0 mL}$ with uncertainty $\pm 0.1$ .

(b)

Interpretation Introduction

Interpretation:

The number of significant figures and uncertainty is to be discussed by using the given glassware’s sample measurement.

Concept Introduction :

Significant figures are those digits that have a meaning in the given number.

Answer to Problem 63A

The sample reading would be $10.2\text{5 mL}$ with uncertainty $\pm 0.1$ and there are four significant figures.

Explanation of Solution

The volume readings are estimated with uncertainty of $\pm 1$ to the one decimal place of the estimated value. So, the sample measurement is $10.\text{25 mL}$ with uncertainty $\pm 0.1$ .

(c)

Interpretation Introduction

Interpretation:

The number of significant figures and uncertainty is to be discussed by using the given glassware’s sample measurement.

Concept Introduction : Significant figures are those digits which have a meaning in the given number.

Answer to Problem 63A

The sample reading would be $1\text{5 mL}$ with uncertainty $\pm 1$ and there are four significant figures.

Explanation of Solution

The volume readings are estimated with uncertainty of $\pm 1$ to the one decimal place of the estimated value. So, the sample measurement is $\text{15 mL}$ with uncertainty $\pm 1$ .