Textbook Question
Solve each of the following problems using one or more conversion factors:
a. Wine is 12% alcohol by volume. How many milliliters of alcohol are in a 0.750-L bottle of wine?
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Ch.2 Chemistry and Measurements
Timberlake14thChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249
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Table of contents
- Ch.1 Chemistry in Our Lives19
- Ch.2 Chemistry and Measurements80
- Ch.3 Matter and Energy53
- Ch.4 Atoms and Elements58
- Ch.5 Nuclear Chemistry42
- Ch.6 Ionic and Molecular Compounds57
- Ch.7 Chemical Quantities and Reactions38
- Ch.8 Gases30
- Ch.9 Solutions50
- Ch.10 Acids and Bases and Equilibrium64
- Ch.11 Introduction to Organic Chemistry: Hydrocarbons77
- Ch.12 Alcohols, Thiols, Ethers, Aldehydes, and Ketones82
- Ch.13 Carbohydrates54
- Ch.14 Carboxylic Acids, Esters, Amines, and Amides91
- Ch.15 Lipids61
- Ch.16 Amino Acids, Proteins, and Enzymes84
- Ch.17 Nucleic Acids and Protein Synthesis86
- Ch.18 Metabolic Pathways and ATP Production73
Timberlake14thChemistry: An Introduction to General, Organic, and Biological ChemistryISBN: 9781292472249Not the one you use?Change textbook
Chapter 2, Problem 66a
Using conversion factors, solve each of the following problems:
a. Sandra has an order from the doctor to give 1.0 g of tetracycline every six hours to a patient. If the stock on hand is 500-mg tablets, how many will she need for one day’s treatment?
Verified step by step guidance1
Step 1: Identify the total amount of tetracycline needed for one day. Since Sandra administers 1.0 g every six hours, calculate the total daily dosage by multiplying 1.0 g by the number of six-hour intervals in a day (24 hours ÷ 6 hours = 4 intervals).
Step 2: Convert the total daily dosage from grams to milligrams. Use the conversion factor 1 g = 1000 mg. Multiply the total daily dosage in grams by 1000 to express it in milligrams.
Step 3: Determine how many 500-mg tablets are needed to meet the total daily dosage. Divide the total daily dosage in milligrams by the dosage per tablet (500 mg).
Step 4: Verify the calculation to ensure the number of tablets is a whole number or round appropriately if necessary. Consider practical implications for administering medication.
Step 5: Confirm the result by checking the units and ensuring the calculation aligns with the prescribed dosage and the available stock of 500-mg tablets.
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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 ratios that express how many of one unit are equal to another unit. They are essential in solving problems that require changing units, such as converting grams to milligrams. In this case, knowing that 1 gram equals 1000 milligrams allows for accurate calculations when determining dosages.
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03:45
Conversion Factors (Simplified) Example 2
Dosage Calculation
Dosage calculation involves determining the correct amount of medication to administer based on prescribed amounts and available stock. In this scenario, understanding how to calculate the total daily dosage from the prescribed amount every six hours is crucial for ensuring the patient receives the correct treatment.
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Medication Administration Schedule
A medication administration schedule outlines how often a medication should be given. In this question, the schedule specifies that tetracycline should be administered every six hours, which means the total daily dosage must account for the frequency of administration over a 24-hour period.
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00:58Significant Figures (Simplified) Example 1
Related Practice
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?
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Textbook Question
Using conversion factors, solve each of the following clinical problems:
b. A patient needs 0.024 g of a sulfa drug. There are 8-mg tablets in stock. How many tablets should be given?
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Textbook Question
Determine the density (g/mL) for each of the following:
a. A 20.0-mL sample of a salt solution has a mass of 24.0 g.
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Textbook Question
Determine the density (g/mL) for each of the following:
b. A cube of butter weighs 0.250 lb and has a volume of 130.3 mL.
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Textbook Question
Determine the density (g/mL) for each of the following:
c. A gem has a mass of 4.50 g. When the gem is placed in a graduated cylinder containing 12.00 mL of water, the water level rises to 13.45 mL.
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