Chapter 3, Problem 1Q

Interpretation Introduction

(a)

Interpretation:

Whether the sequentially numbered pages need to be present in notebook after the completion of experiment is true or false should be determined.

Concept introduction:

A laboratory notebook is a document to record all the experimental work, hypotheses, experimental setup, and data calculated. A laboratory notebook should include the following things:

• Experiment title: A title to identify the purpose of the experiment should be written.
• Date: The date of the experiment should be written.
• Statement of purpose: A brief statement for the purpose of the experiment as an objective should be written.
• Waste disposal: If the procedure of the chemical reaction states how to dispose the waste that is remained from the experiment.
• Balanced chemical reactions: Balanced chemical equations should be written that can explain the overall process.
• List of the techniques used: List the page in the techniques that are used for the chemical process.

Explanation of Solution

It is important to arrange and keep the records of the experiments in an ordered way so the pages need to be sequentially numbered in the laboratory notebook. Therefore the given statement is true.

Interpretation Introduction

(b)

Interpretation:

Whether the entries need to be written in pencil is true or false should be determined.

Concept introduction:

A laboratory notebook is a document to record all the experimental work, hypotheses, experimental setup, and data calculated. A laboratory notebook should include the following things:

• Experiment title: A title to identify the purpose of the experiment should be written.
• Date: The date of the experiment should be written.
• Statement of purpose: A brief statement for the purpose of the experiment as an objective should be written.
• Waste disposal: If the procedure of the chemical reaction states how to dispose the waste that is remained from the experiment.
• Balanced chemical reactions: Balanced chemical equations should be written that can explain the overall process.
• List of the techniques used: List the page in the techniques that are used for the chemical process.

Explanation of Solution

The entries written in laboratory notebook should be written with pen in order to prevent the loss or manipulation of actual data. So the given statement is false.

Interpretation Introduction

(c)

Interpretation:

Whether the blank spaces need to be filled with details later is true or false should be determined.

Concept introduction:

A laboratory notebook is a document to record all the experimental work, hypotheses, experimental setup, and data calculated. A laboratory notebook should include the following things:

• Experiment title: A title to identify the purpose of the experiment should be written.
• Date: The date of the experiment should be written.
• Statement of purpose: A brief statement for the purpose of the experiment as an objective should be written.
• Waste disposal: If the procedure of the chemical reaction states how to dispose the waste that is remained from the experiment.
• Balanced chemical reactions: Balanced chemical equations should be written that can explain the overall process.
• List of the techniques used: List the page in the techniques that are used for the chemical process.

Explanation of Solution

The blank spaces should not be left to be filled later as this will lead to confusion about whether all the spaces have been filled later or not. Also, if any space is left unfilled it will create a bad impression of student on the reader. So the given statement is false.

Interpretation Introduction

(d)

Interpretation:

Whether no statements that were crossed out and rewritten in laboratory notebook is true or false should be determined.

Concept introduction:

A laboratory notebook is a document to record all the experimental work, hypotheses, experimental setup, and data calculated. A laboratory notebook should include the following things:

• Experiment title: A title to identify the purpose of the experiment should be written.
• Date: The date of the experiment should be written.
• Statement of purpose: A brief statement for the purpose of the experiment as an objective should be written.
• Waste disposal: If the procedure of the chemical reaction states how to dispose the waste that is remained from the experiment.
• Balanced chemical reactions: Balanced chemical equations should be written that can explain the overall process.
• List of the techniques used: List the page in the techniques that are used for the chemical process.

Explanation of Solution

Both the correct and incorrect observations should be written in the notebook in order to ensure the correct follow up of procedure. An experiment cannot give the exact and correct observations all the time. So given statement is false.

Interpretation Introduction

(e)

Interpretation:

Whether the dates for all entries need to be written is true or false should be determined.

Concept introduction:

A laboratory notebook is a document to record all the experimental work, hypotheses, experimental setup, and data calculated. A laboratory notebook should include the following things:

• Experiment title: A title to identify the purpose of the experiment should be written.
• Date: The date of the experiment should be written.
• Statement of purpose: A brief statement for the purpose of the experiment as an objective should be written.
• Waste disposal: If the procedure of the chemical reaction states how to dispose the waste that is remained from the experiment.
• Balanced chemical reactions: Balanced chemical equations should be written that can explain the overall process.
• List of the techniques used: List the page in the techniques that are used for the chemical process.

Explanation of Solution

The dates for all entries should be written in laboratory notebook in order to show that the experiments are completed on time. This will leave a positive impact on the reader. So the given statement is true.

Interpretation Introduction

(f)

Interpretation:

Whether detailed calculations need not to be written in laboratory notebook is true or false should be determined.

Concept introduction:

A laboratory notebook is a document to record all the experimental work, hypotheses, experimental setup, and data calculated. A laboratory notebook should include the following things:

• Experiment title: A title to identify the purpose of the experiment should be written.
• Date: The date of the experiment should be written.
• Statement of purpose: A brief statement for the purpose of the experiment as an objective should be written.
• Waste disposal: If the procedure of the chemical reaction states how to dispose the waste that is remained from the experiment.
• Balanced chemical reactions: Balanced chemical equations should be written that can explain the overall process.
• List of the techniques used: List the page in the techniques that are used for the chemical process.

Explanation of Solution

The detailed calculations should be written in order to understand the mathematical approach of the experiment. So given statement is false.