Conversion Factors in Chemistry Worksheet
Grade 12 Chemistry worksheet on conversion factors, dimensional analysis, and stoichiometry calculations.
Includes
Standards
Conversion Factors in Chemistry
Name:
Date:
Score:
Read each question carefully and provide your answer in the space provided. Show all your work for calculations, including units and correct significant figures.
1. Which of the following is an example of a conversion factor?
12 apples
1 mole / 6.022 x 10^23 particles
25 grams of NaCl
The density of water is 1 g/mL
2. Dimensional analysis is primarily used for:
Balancing chemical equations
Converting between different units
Determining reaction rates
Identifying unknown substances
3. The molar mass of a compound is a conversion factor that relates grams to .
4. Avogadro's number (6.022 x 10^23) is used to convert between moles and the number of or .
5. Convert 3.50 moles of H2O to grams. (Molar mass of H2O = 18.02 g/mol)
6. How many atoms are present in 0.75 moles of Carbon?
7. A conversion factor must always have a value of 1.
True
False
8. When using dimensional analysis, units that are the same in the numerator and denominator can be cancelled out.
True
False
9. A reaction produces 15.0 grams of carbon dioxide (CO2). How many liters of CO2 is this at STP? (Molar mass of CO2 = 44.01 g/mol, 1 mole of gas at STP = 22.4 L)
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