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

Dimensional Analysis

GOB Chemistry

1. Matter and Measurements

Dimensional Analysis

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1:14 minutes

Problem 63a

Textbook Question

Using conversion factors, solve each of the following clinical problems:
a. You have used 250 L of distilled water for a dialysis patient. How many gallons of water is that?

Verified step by step guidance

Step 1: Identify the conversion factor between liters and gallons. The relationship is 1 gallon = 3.785 liters.

Step 2: Set up the conversion equation using the given volume in liters (250 L) and the conversion factor. The equation will be: \( \text{Volume in gallons} = \frac{\text{Volume in liters}}{\text{Conversion factor}} \).

Step 3: Substitute the values into the equation: \( \text{Volume in gallons} = \frac{250}{3.785} \).

Step 4: Perform the division to calculate the volume in gallons. Ensure proper unit cancellation during the calculation.

Step 5: Verify the result to ensure it makes sense in the context of the problem (e.g., the number of gallons should be smaller than the number of liters since gallons are larger units).

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Key Concepts

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

Conversion Factors

Conversion factors are numerical ratios used to convert one unit of measurement to another. They are essential in solving problems that require changing units, such as converting liters to gallons. For example, knowing that 1 gallon is approximately 3.785 liters allows for straightforward calculations by multiplying or dividing the quantity by the appropriate conversion factor.

Volume Measurement Units

Volume measurement units, such as liters and gallons, are used to quantify the space that a substance occupies. Liters are commonly used in scientific contexts, while gallons are more prevalent in everyday use, especially in the United States. Understanding the relationship between these units is crucial for accurate conversions in clinical settings, such as calculating fluid intake for patients.

Clinical Application of Measurements

In clinical settings, accurate measurement and conversion of fluids are vital for patient care, particularly in treatments like dialysis. Knowing how to convert between different volume units ensures that healthcare providers can administer the correct amounts of fluids, which is essential for patient safety and treatment efficacy. This skill is particularly important when dealing with large volumes, such as the 250 liters mentioned in the problem.

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