Table of contents

1. Matter and Measurements4h 31m
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 27m
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. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
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

Metric Prefixes

GOB Chemistry

1. Matter and Measurements

Metric Prefixes

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0:46 minutes

Problem 59c

Textbook Question

Use metric conversion factors to solve each of the following problems:
c. A hummingbird has a mass of 0.0055 kg. What is the mass, in grams, of the hummingbird?

Verified step by step guidance

Step 1: Understand the problem. You are tasked with converting the mass of a hummingbird from kilograms (kg) to grams (g). This requires using the metric conversion factor between kilograms and grams.

Step 2: Recall the metric conversion factor. 1 kilogram (kg) is equal to 1000 grams (g). This can be expressed as:

1 kg = 1000 g

Step 3: Set up the conversion. Multiply the given mass in kilograms (0.0055 kg) by the conversion factor (1000 g/kg) to convert to grams. The setup looks like this:

0.0055 kg \times \frac{1000}{1} = mass in grams

Step 4: Cancel units. Notice that the unit 'kg' cancels out, leaving the result in grams (g). This is a key step in dimensional analysis.

Step 5: Perform the multiplication. Multiply 0.0055 by 1000 to find the mass in grams. The result will give you the mass of the hummingbird in grams.

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Key Concepts

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

Metric System

The metric system is a decimal-based system of measurement used globally, which includes units such as meters for length, liters for volume, and grams for mass. It is based on powers of ten, making conversions straightforward. Understanding the metric system is essential for accurately interpreting and converting measurements.

Unit Conversion

Unit conversion involves changing a measurement from one unit to another while maintaining its value. In this case, converting kilograms to grams requires multiplying by a conversion factor, specifically that 1 kilogram equals 1000 grams. Mastery of unit conversion is crucial for solving problems that involve different measurement units.

Mass and Weight

Mass is a measure of the amount of matter in an object, typically expressed in kilograms or grams, while weight is the force exerted by gravity on that mass. In this context, the mass of the hummingbird is given in kilograms, and the task is to express it in grams, highlighting the importance of understanding the distinction between these two related concepts.