Chemistry 1020 Lab Final Questions With Complete Solutions
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Course
Chem 1020
Institution
University Of New England (UNE
)
Acid + Base -> correct answer: Salt + Water
Molarity (M) correct answer: Number of moles per liter
Titration of Vinegar correct answer: First drops will cause brief appearance of pink that quickly fades
Near endpoint, more of the flask will turn pink but still fade after a few seconds
...
chemistry 1020 lab final questions with complete s
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University of New England (UNE
)
Chem 1020
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Chemistry 1020 Lab Final Questions With
Complete Solutions
Acid + Base -> correct answer: Salt + Water
Molarity (M) correct answer: Number of moles per liter
Titration of Vinegar correct answer: First drops will cause brief
appearance of pink that quickly fades
Near endpoint, more of the flask will turn pink but still fade
after a few seconds
Endpoint
When entire flask turns pink and stays that way without adding
another drop
Buffer correct answer: - Solution that resists a change in pH
when a small
amount of acid or base is added
Ka = correct answer: a measure of how much an acid
dissociates in
water
- Smaller Ka means weaker acid (less dissociation)
Saturated correct answer: - All carbons joined by single bonds
• Alkanes
Unsaturated correct answer: - Some carbons joined by double or
triple bonds
• Alkenes
• Alkynes
• Aromatic
Different classes of hydrocarbons react differently correct
answer: Bromine:Deep brown to clear
Potassium permanganate (KMnO4): purple to clear
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