1. How many milligrams (mg) are equal to 1000 micrograms (mcg)?
2. How many pounds (lb) are in one kilogram (kg)?
3. How many milliliters (mL) are in 1/2 of a household measuring cup?
4. Which of the following is an example of a correct conversion factor?
a 50 ml/1oz
b 1 cup/120 mL
c 15 grains/1gram
d 1 gram/centigrams
5. One teaspoon is equal to how many mL?
6. How many milliliters (mL) are in one cubic centimeter (cc)?
7. 60 mg = ? grain(s)
8. 1 cup= ? ml
MY ANSWERS
1. 1 mg
2. 2.2 lb
3. 120 cups
4. c
5. 5 mL
6. 1 cc
7. 1 gr
8. 240 ml
1, 2. Agree.
3. 118 ml
4. agree
5. 4.9 ml
6. 1 ml
7. .924 gr
8. 237 ml
Make sure you are using the correct units.
1. To determine how many milligrams (mg) are equal to 1000 micrograms (mcg), you need to understand the metric system conversion between milligrams and micrograms. In the metric system, there is a 1000x difference between milligrams and micrograms. So, 1 milligram is equal to 1000 micrograms. Therefore, the answer is 1 mg.
2. To convert pounds (lb) to kilograms (kg) or vice versa, you need to know the conversion factor between the two. The conversion factor is 1 lb = 0.453592 kg. So, to convert pounds to kilograms, you multiply the value in pounds by 0.453592. Similarly, to convert kilograms to pounds, you divide the value in kilograms by 0.453592. Therefore, the answer is approximately 2.2 lb.
3. To determine how many milliliters (mL) are in 1/2 of a household measuring cup, you need to know the conversion factor between the two units. A household measuring cup typically measures volume in cups. One cup is equal to 240 milliliters (mL). Therefore, 1/2 of a cup is equal to half of 240 mL, which is 120 mL.
4. The correct conversion factor depends on the specific conversion you are trying to perform. Let's evaluate the given options:
a) 50 mL/1 oz: This is a valid conversion factor to convert ounces (oz) to milliliters (mL).
b) 1 cup/120 mL: This is the correct conversion factor to convert milliliters to cups.
c) 15 grains/1 gram: This is a valid conversion factor to convert grams to grains.
d) 1 gram/centigrams: This is not a correct conversion factor because centigrams are smaller than grams, so the ratio should be the other way around (e.g., 1 centigram/0.01 gram).
Therefore, the correct conversion factor is c) 15 grains/1 gram.
5. To determine the number of milliliters (mL) in one teaspoon, you need to know the conversion factor between the two units. One teaspoon is equal to approximately 5 milliliters (mL). Therefore, the answer is 5 mL.
6. One cubic centimeter (cc) is equal to one milliliter (mL). These units have an exact 1:1 conversion because they both measure volume. Therefore, the answer is 1 mL.
7. To convert milligrams (mg) to grains, you need to know the conversion factor between the two units. One grain (gr) is approximately equal to 64.79891 milligrams (mg). Therefore, to convert milligrams to grains, you divide the value in milligrams by 64.79891. In this case, 60 mg divided by 64.79891 is approximately 0.925 grains, which can be rounded to 1 grain.
8. To convert cups to milliliters (ml), you need to know the conversion factor between the two units. One cup is equal to 240 milliliters (mL). Therefore, 1 cup is equal to 240 mL.