IndietroGeneral Chemistry Homework Guidance: Unit Conversions, Density, and Significant Figures
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Q1. Convert 2.5 km to cm.
Background
Topic: Metric Unit Conversions
This question tests your ability to convert between different metric units using conversion factors.
Key Terms and Formulas:
1 kilometer (km) = 1,000 meters (m)
1 meter (m) = 100 centimeters (cm)
Step-by-Step Guidance
Start with the given value: 2.5 km.
Convert kilometers to meters using the conversion factor:
Now, convert meters to centimeters:
Multiply the numbers together to get the value in centimeters, but do not calculate the final value yet.
Try solving on your own before revealing the answer!
Final Answer: 250,000 cm
We multiplied by the appropriate conversion factors to move from kilometers to centimeters.
Q2. Convert 0.0035 L to mL.
Background
Topic: Metric Unit Conversions
This question tests your understanding of converting between liters and milliliters.
Key Terms and Formulas:
1 liter (L) = 1,000 milliliters (mL)
Step-by-Step Guidance
Start with the given value: 0.0035 L.
Multiply by the conversion factor to go from liters to milliliters:
Set up the multiplication, but do not calculate the final value yet.
Try solving on your own before revealing the answer!
Final Answer: 3.5 mL
We used the conversion factor to change liters to milliliters.
Q3. Convert 2500 mg to g.
Background
Topic: Metric Unit Conversions
This question tests your ability to convert milligrams to grams.
Key Terms and Formulas:
1 gram (g) = 1,000 milligrams (mg)
Step-by-Step Guidance
Start with the given value: 2500 mg.
Multiply by the conversion factor to go from milligrams to grams:
Set up the multiplication, but do not calculate the final value yet.
Try solving on your own before revealing the answer!
Final Answer: 2.5 g
We divided by 1000 to convert milligrams to grams.
Q4. Convert 0.025 km to mm.
Background
Topic: Metric Unit Conversions
This question tests your ability to convert kilometers to millimeters using multiple conversion steps.
Key Terms and Formulas:
1 kilometer (km) = 1,000 meters (m)
1 meter (m) = 1,000 millimeters (mm)
Step-by-Step Guidance
Start with the given value: 0.025 km.
Convert kilometers to meters:
Convert meters to millimeters:
Multiply the numbers together, but do not calculate the final value yet.
Try solving on your own before revealing the answer!
Final Answer: 25,000 mm
We used two conversion factors to go from kilometers to millimeters.
Q5. Convert 1.5 mL to L.
Background
Topic: Metric Unit Conversions
This question tests your ability to convert milliliters to liters.
Key Terms and Formulas:
1 liter (L) = 1,000 milliliters (mL)
Step-by-Step Guidance
Start with the given value: 1.5 mL.
Multiply by the conversion factor to go from milliliters to liters:
Set up the multiplication, but do not calculate the final value yet.
Try solving on your own before revealing the answer!
Final Answer: 0.0015 L
We divided by 1000 to convert milliliters to liters.
Q6. Convert 0.002 kg to mg.
Background
Topic: Metric Unit Conversions
This question tests your ability to convert kilograms to milligrams using multiple conversion steps.
Key Terms and Formulas:
1 kilogram (kg) = 1,000 grams (g)
1 gram (g) = 1,000 milligrams (mg)
Step-by-Step Guidance
Start with the given value: 0.002 kg.
Convert kilograms to grams:
Convert grams to milligrams:
Multiply the numbers together, but do not calculate the final value yet.
Try solving on your own before revealing the answer!
Final Answer: 2,000 mg
We used two conversion factors to go from kilograms to milligrams.