Multiple Choice
What is the primary purpose of testing distilled water without an antacid during a distillation experiment?
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4. BONUS: Lab Techniques and Procedures
Distillation & Floatation
Multiple Choice
Which of the following methods could be used to sterilize a heat-sensitive liquid?
A
Evaporation
B
Boiling
C
Filtration
D
Autoclaving
Verified step by step guidance1
Identify the properties of the liquid that make it heat-sensitive. Heat-sensitive liquids can degrade or lose their effectiveness when exposed to high temperatures.
Understand the concept of sterilization. Sterilization is the process of eliminating all forms of life, including bacteria, viruses, and spores, from a substance or surface.
Evaluate the methods listed: Evaporation, Boiling, Filtration, and Autoclaving. Consider how each method affects the liquid and its ability to remain intact without heat damage.
Recognize that filtration is a physical method of sterilization that does not involve heat. It uses a filter to remove microorganisms from the liquid, making it suitable for heat-sensitive substances.
Conclude that filtration is the appropriate method for sterilizing a heat-sensitive liquid, as it effectively removes contaminants without exposing the liquid to damaging temperatures.
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