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CEM 141 Module 2.pdf#######################################################################################
141 Module 2.pdfCEM 141 Module 2.pdf#############################################
CEM 141 Module 2
- ANS-5.0 moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the
maximum amount of sulfur trioxide. How many moles of which atoms/molecules remain in the
reaction flask after the reaction has produced the maximum amount of products?
- ANS-Assume that the experiment described in 11d was carried out in the lab and 30 grams of
carbon dioxide were produced. What is the percent yield?
- ANS-Draw a graph showing how the potential energy changes as the atoms move from far
apart to where they are smooshed together (a technical term!).
- ANS-Draw a picture of a wave. Label the wavelength and amplitude.
- ANS-Explain what the mole is, and why we need to use it to convert from the atomic
molecular level to the macroscopic (real world) scale. Explain how you would use it to do a
stoichiometry calculation. Be sure to include the rationale for each step in the calculation.
- ANS-How many grams of carbon dioxide are produced by the combustion of 13 grams of
acetylene with 35 grams of oxygen?
- ANS-How many grams of carbon dioxide are produced by the combustion of 13 grams of
acetylene? Assume there is excess oxygen.
- ANS-How many moles of oxygen are required to burn 1.0 mole of acetylene?
- ANS-Make an argument that light (electromagnetic radiation) is a particle.
Claim: Light is a particle.
Evidence:
Reasoning:
- ANS-Make an argument that light (electromagnetic radiation) is a wave.
Claim: Light is a wave.
Evidence:
Reasoning:
- ANS-On the same picture of the wave in part a, use a dashed line to draw a wave with the
same velocity and twice the frequency. How does doubling the frequency affect the wavelength?
######################################################################################!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!Q
CEM 141 Module 2.pdf####################################################################################CE
#############################CEM
CEM 141 Module 2.pdf#######################################################################################
141 Module 2.pdfCEM 141 Module 2.pdf#############################################
CEM 141 Module 2
- ANS-5.0 moles of sulfur atoms and 10 moles of oxygen molecules are combined to form the
maximum amount of sulfur trioxide. How many moles of which atoms/molecules remain in the
reaction flask after the reaction has produced the maximum amount of products?
- ANS-Assume that the experiment described in 11d was carried out in the lab and 30 grams of
carbon dioxide were produced. What is the percent yield?
- ANS-Draw a graph showing how the potential energy changes as the atoms move from far
apart to where they are smooshed together (a technical term!).
- ANS-Draw a picture of a wave. Label the wavelength and amplitude.
- ANS-Explain what the mole is, and why we need to use it to convert from the atomic
molecular level to the macroscopic (real world) scale. Explain how you would use it to do a
stoichiometry calculation. Be sure to include the rationale for each step in the calculation.
- ANS-How many grams of carbon dioxide are produced by the combustion of 13 grams of
acetylene with 35 grams of oxygen?
- ANS-How many grams of carbon dioxide are produced by the combustion of 13 grams of
acetylene? Assume there is excess oxygen.
- ANS-How many moles of oxygen are required to burn 1.0 mole of acetylene?
- ANS-Make an argument that light (electromagnetic radiation) is a particle.
Claim: Light is a particle.
Evidence:
Reasoning:
- ANS-Make an argument that light (electromagnetic radiation) is a wave.
Claim: Light is a wave.
Evidence:
Reasoning:
- ANS-On the same picture of the wave in part a, use a dashed line to draw a wave with the
same velocity and twice the frequency. How does doubling the frequency affect the wavelength?
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CEM 141 Module 2.pdf####################################################################################CE
