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Chem 111 Exam 1 Questions and Answers
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Chem 111 Exam 1 Questions and Answers Who is able to assess all of the potential hazards of your distance learning laboratory setting and take the necessary precautions? me While performing a laboratory investigation, you accidentally splash a corrosive chemical into your eyes. How would y...

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  • November 12, 2024
  • 4
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • chem 111 exam 1 questions and answers
  • who is able to assess all of the potential hazards
  • while performing a laboratory investigation you a

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Chem 111 Exam 1 Questions and
Answers
Who is able to assess all of the potential hazards of your distance learning laboratory
setting and take the necessary precautions? - answer me

While performing a laboratory investigation, you accidentally splash a corrosive
chemical into your eyes. How would you quickly rinse the chemical from your eyes,
given your particular surroundings? How long should you rinse your eyes? - answer
If a chemical splashes into your eyes, immediately rinse your eyes with water for at
least 15 minutes. A kitchen sink sprayer or bathroom shower can be used as an
eyewash. Then seek a medical professional for additional advice and treatment.

What does principle quantum number, n, tell us? - answer the discrete energy level
of an electron

Which of the following is the best description of how a spectroscope works? - answer
Light enters the spectroscope and is refracted by diffraction grating onto a scale.

What wavelength would you expect to see on the spectroscope while viewing a red
sparkler? - answer 640-750 nm

Which term describes a measure of dissolved multivalent cations in water? - answer
hardness

Which is NOT a common example of an ionic species found in hard groundwater as a
result of dissolved minerals from the bedrock?
hydrogen
sulfate
bicarbonate
calcium
magnesium - answer hydrogen

Which of these is also called a chelating agent? - answer polydentate ligand

Define endpoint - answer When EDTA is added to a solution during a
complexometric titration and all of the free metal ions have been bound, the EDTA will
compete for the metal ions complexed with the indicator. EDTA is a stronger metal
complexing agent so it will "steal" the metal ions from the indicator. When the indicator
loses it metal ions, it will change color reaching a certain color. This is called the
endpoint.

Which of these is the part of a solution that dissolves in the solvent? - answer solute

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