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Quizzes > Science

Chemistry Conversion Quiz: Practice Unit Conversions

Quick, free conversion factor practice. Instant results.

Editorial: Review CompletedCreated By: Sabyasachi NiyogiUpdated Aug 26, 2025
Difficulty: Moderate
Grade: Grade 10
Study OutcomesCheat Sheet
Colorful paper art promoting Conversion Factor Frenzy, a high school-level math and science quiz.

This quiz helps you practice chemistry conversion factors so you can convert units and check your steps. Work through clear problems and see what to study next. For a quick refresher, try our chemistry basics quiz. For wider review, take the grade 10 chemistry quiz or prepare with a chemistry chapter 4 quiz.

How many meters are in 1 kilometer?
0.001 meters
10,000 meters
1000 meters
100 meters
1 kilometer equals 1000 meters because the metric system is based on powers of ten. This conversion factor is fundamental in unit conversions.
How many centimeters are in 1 meter?
10,000 centimeters
10 centimeters
100 centimeters
1000 centimeters
1 meter is equivalent to 100 centimeters, a basic fact in the metric system. This conversion is commonly used in everyday measurements.
How many milliliters are in 1 liter?
1000 milliliters
10,000 milliliters
100 milliliters
10 milliliters
Since 1 liter is defined as 1000 milliliters, the conversion is straightforward. This basic conversion is essential for volume measurements.
What is the conversion factor to convert grams to kilograms?
Multiply by 1000
Multiply by 0.001
Divide by 100
Divide by 0.001
Multiplying by 0.001 converts grams to kilograms because 1 kilogram equals 1000 grams. This factor represents a direct division by 1000.
When converting inches to feet, which conversion is correct?
8 inches = 1 foot
16 inches = 1 foot
10 inches = 1 foot
12 inches = 1 foot
There are 12 inches in one foot, making '12 inches = 1 foot' the correct conversion. This is a standard fact in the imperial system.
Convert 5 kilometers into meters.
500 meters
5000 meters
0.005 meters
50,000 meters
Multiplying 5 kilometers by 1000 converts it into 5000 meters. This emphasizes the principle of scaling by powers of ten in the metric system.
A vehicle travels 60 miles per hour. How many feet does it travel in one second? (1 mile = 5280 feet, 1 hour = 3600 seconds)
79 feet
96 feet
120 feet
88 feet
Converting 60 mph to feet per second involves multiplying 60 by 5280 and then dividing by 3600, which results in 88 feet per second. This problem integrates multiple conversion steps.
How many seconds are in 3.5 hours?
12600 seconds
10500 seconds
8400 seconds
15600 seconds
There are 3600 seconds in one hour, so multiplying 3.5 by 3600 yields 12600 seconds. This conversion reinforces the relationship between hours and seconds.
A recipe calls for 250 milliliters of water. How many liters is that?
2.5 liters
0.025 liters
25 liters
0.25 liters
Dividing 250 milliliters by 1000 converts it to 0.25 liters. This is a straightforward application of volume conversion in the metric system.
If a chemist has 3.5 grams of a substance, how many milligrams does she have? (1 gram = 1000 milligrams)
350 milligrams
0.35 milligrams
3500 milligrams
35 milligrams
Multiplying 3.5 grams by 1000 converts it to 3500 milligrams. This conversion is essential for precise measurements in laboratory settings.
A map uses a scale where 1 inch represents 50 miles. How many inches represent 200 miles?
4 inches
2 inches
5 inches
6 inches
Dividing 200 miles by the scale factor of 50 miles per inch gives 4 inches. This problem tests proportional reasoning using conversion factors.
Which formula correctly converts Celsius to Fahrenheit?
(°C - 32) Ã- 5/9
(°C Ã- 5/9) + 32
(°C Ã- 9/5) - 32
(°C Ã- 9/5) + 32
The correct formula to convert Celsius to Fahrenheit is (°C Ã- 9/5) + 32. This classical equation is frequently used in temperature conversions.
A student scored 75% on a 200-point exam. How many points did they earn?
150 points
175 points
100 points
125 points
Calculating 75% of 200 points results in 150 points. This percentage calculation is a vital skill in many academic scenarios.
Convert 0.75 pounds into ounces. (1 pound = 16 ounces)
12 ounces
8 ounces
16 ounces
10 ounces
Multiplying 0.75 pounds by 16 yields 12 ounces. This conversion demonstrates the direct relation between pounds and ounces in the imperial system.
How many kilometers are in 50,000 centimeters?
5 kilometers
50 kilometers
0.5 kilometers
500 kilometers
Since 1 kilometer equals 100,000 centimeters, dividing 50,000 by 100,000 gives 0.5 kilometers. This problem reinforces metric conversion techniques.
How many molecules are in 2.0 moles of water? (Avogadro's number = 6.02 Ã- 10^23 molecules/mol)
1.204 Ã- 10^24 molecules
3.01 Ã- 10^23 molecules
1.204 Ã- 10^23 molecules
6.02 Ã- 10^23 molecules
Multiplying 2.0 moles by Avogadro's number (6.02 Ã- 10^23) results in 1.204 Ã- 10^24 molecules. This conversion illustrates the use of scientific notation in chemistry.
To convert 0.85 atm to torr, which conversion factor should be applied? (1 atm = 760 torr)
0.85 atm / 760 torr/atm = 0.00112 torr
0.85 atm Ã- 85 torr/atm = 72.25 torr
0.85 atm Ã- 760 torr/atm = 646 torr
0.85 atm Ã- 1000 torr/atm = 850 torr
Multiplying 0.85 atm by the conversion factor 760 torr/atm converts it to approximately 646 torr. This problem tests proper application of conversion factors in pressure measurements.
A sample has a volume of 3.2 liters. Convert this volume to cubic centimeters (cm³).
3200 cm³
0.32 cm³
32 cm³
32000 cm³
Since 1 liter equals 1000 cm³, multiplying 3.2 liters by 1000 results in 3200 cm³. This conversion is commonly used in scientific volume measurements.
When converting 2.5 Ã- 10^3 milligrams to grams, what is the correct equivalent?
25 grams
2.5 grams
2500 grams
0.25 grams
Dividing 2.5 Ã- 10^3 milligrams by 1000 converts it to 2.5 grams. This reinforces the concept of metric unit conversion between mass units.
If 3.00 moles of CO2 are produced in a reaction, how many grams of CO2 are formed? (Molar mass of CO2 = 44.01 g/mol)
88.02 grams
44.01 grams
3.00 grams
132.03 grams
Multiplying 3.00 moles by the molar mass 44.01 g/mol gives 132.03 grams of CO2 produced. This conversion is key to stoichiometric calculations in chemistry.
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Study Outcomes

  1. Understand the concept of conversion factors and measurement units.
  2. Apply conversion techniques to solve unit conversion problems.
  3. Analyze problems to identify the appropriate conversion method.
  4. Synthesize multi-step solutions for complex measurement conversions.
  5. Evaluate the accuracy of conversion results in varied contexts.

Chemistry Conversion Factors Practice Cheat Sheet

  1. Master Conversion Factors - Conversion factors are ratios that express the same quantity in different units, like 1 inch = 2.54 cm. Grasping this concept lets you switch units smoothly in any calculation and supercharges your problem‑solving skills.
  2. Know Metric Prefixes - The metric world speaks in prefixes: kilo‑ means 1000, centi‑ means 1/100, milli‑ means 1/1000. Decoding this secret code helps you shrink or expand numbers in a flash and makes meters, liters, and grams your best friends.
  3. Practice Dimensional Analysis - Dimensional analysis, or the factor‑label method, is your trusty map for unit conversions: cancel units like algebra variables until you hit your target. With a systematic approach, even the trickiest conversions bow to your precision.
  4. Memorize Key SI Conversions - Keep these power tools handy: 1 L = 1000 mL and 1 kg = 1000 g. These basic yet mighty conversions underlie volume and mass calculations and'll save you from second‑guessing during crunch time.
  5. Connect Mass, Volume & Density - Density = mass/volume is the golden formula linking how heavy something is to how much space it takes. Understanding this relationship lets you hop between grams and milliliters effortlessly and solve a variety of chemistry riddles.
  6. Learn Temperature Conversions - Dance between Celsius, Kelvin, and Fahrenheit with K = °C + 273.15 and °C = (°F - 32) × 5/9 on your dance card. Mastering these transforms heat readings into universal language so reactions stay in your control.
  7. Convert Between English & Metric - Bring English units like inches and pounds into the metric party with 1 inch = 2.54 cm and 1 lb = 0.4536 kg. This crossover trick is essential for interpreting experiments and real‑world data from all over the globe.
  8. Reinforce with Practice Problems - There's no substitute for hands‑on reps: tackle diverse problems to flex your conversion muscles. Regular drills turn shaky skills into rock‑solid habits, so you'll nail test questions with confidence.
  9. Respect Significant Figures - Keep an eye on sig figs to make sure your answers are as precise as the problem demands - no more, no less. Maintaining correct significant figures turns rough estimates into scientifically sound results.
  10. Create Mnemonic Devices - Get creative and fashion memorable tricks - like "King Henry Died By Drinking Chocolate Milk" for kilo‑, hecto‑, deka‑, unit, deci‑, centi‑, milli‑. These catchy phrases supercharge your recall when the clock is ticking.
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