Table of contents

1. Matter and Measurements4h 29m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 35m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines38m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 46m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

1. Matter and Measurements

Scientific Notation

GOB Chemistry

1. Matter and Measurements

Scientific Notation

1:30 minutes

Problem 15bTimberlake - 13th Edition

Textbook Question

Write each of the following in scientific notation with two significant figures: c. 100 000 m

Verified step by step guidance

Identify the significant figures in the number 100,000. Since it is written as 100 000, it has one significant figure.

To express 100,000 in scientific notation with two significant figures, we need to adjust the number to have two non-zero digits.

Rewrite 100,000 as 1.0 x 10^5 to include two significant figures.

The number 1.0 represents the two significant figures, and 10^5 indicates the decimal point has been moved five places to the left.

Ensure the final expression in scientific notation reflects the correct number of significant figures and the correct power of ten.

Recommended similar problem, with video answer:

Verified Solution

This video solution was recommended by our tutors as helpful for the problem above

Video duration:

Play a video:

Was this helpful?

Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Scientific Notation

Scientific notation is a method of expressing numbers that are too large or too small in a compact form. It is written as the product of a number between 1 and 10 and a power of ten. For example, the number 100,000 can be expressed as 1.0 x 10^5 in scientific notation.

Significant Figures

Significant figures are the digits in a number that contribute to its precision. This includes all non-zero digits, any zeros between significant digits, and trailing zeros in the decimal portion. When converting to scientific notation, it is important to round the number to the specified number of significant figures, which in this case is two.

Rounding Rules

Rounding rules dictate how to adjust numbers to the desired level of precision. When rounding to two significant figures, if the digit following the last significant figure is 5 or greater, the last significant figure is increased by one. This ensures that the representation of the number remains as accurate as possible while adhering to the specified significant figure requirement.