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

What is Chemistry?

GOB Chemistry

1. Matter and Measurements

What is Chemistry?

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2:30 minutes

Problem 45Timberlake - 13th Edition

Textbook Question

A bag of gumdrops contains 16 orange gumdrops, 8 yellow gumdrops, and 16 black gumdrops. (1.4) a. What is the percentage of yellow gumdrops? Express your answer to the ones place.

Verified step by step guidance

insert step 1: Determine the total number of gumdrops by adding the number of orange, yellow, and black gumdrops together.

insert step 2: Identify the number of yellow gumdrops in the bag.

insert step 3: Calculate the percentage of yellow gumdrops by dividing the number of yellow gumdrops by the total number of gumdrops.

insert step 4: Multiply the result from step 3 by 100 to convert it to a percentage.

insert step 5: Round the percentage to the nearest ones place.

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Key Concepts

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

Percentage Calculation

Percentage is a way of expressing a number as a fraction of 100. To calculate the percentage of a specific category within a total, you divide the number of items in that category by the total number of items and then multiply by 100. This concept is essential for determining the proportion of yellow gumdrops in the bag.

Total Count of Items

To find the percentage of a specific item, it is crucial to know the total count of all items in the set. In this case, the total number of gumdrops is the sum of orange, yellow, and black gumdrops. Understanding the total count allows for accurate percentage calculations.

Rounding Rules

When expressing percentages, rounding may be necessary to present the answer clearly. Rounding rules dictate that if the digit after the desired place value is 5 or greater, you round up. This is important for providing the final answer to the ones place as specified in the question.