Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Question
Based on question 2 and 3 what combination of temperature and vinegar concentration would best achieve a slow oozing reaction
Transcribed Image Text:dium bicarbonate. Vinegar is a mixture of acetic acid dissolved in water, and it is only the acetic acid that reacts. Acetic acid and sodium bicarbonate can react togethe
HC2H302
NaHCO3
NAC2H302
+ H20 +
CO2
acetic acid + sodium bicarbonate
sodium acetate +water + carbon dioxide
mer make a science fair volcano,
Samuel obtains samples of solid acetic acid powder and solid sodium bicarbonate powder from his chemistry teacher. He mixes the two powders together, but there is no reacti
e of matter of the particles, give a possible explanation for why there is no reaction.
produce any hydrogen ions in the solid-state. In aqueous media, acetic acid lonizes to produce H ions, and these hydrogen ions combine with bicarbonate present in baking soda and liberate CO, gas.9
etic acid, but solid acetic acid never reacts with bicarbonate. Acetic acid ionizes only in aqueous media as H ions and acetate ions. Hence, aqueous acetic acid reacts with bicarbonate and liberates carbc
m between solid bicarbonate, and acetic acid powder.
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Transcribed Image Text:2. For his second experiment, Samuel uses vinegar instead of acetic acid powder. He sets up three experimental trials with different reaction conditions. He records all his data in the table below for the three trials.
Trial
Mass of Baking Soda (g)
Temperature ("C)
Volume of Vinegar (ml)
Reaction time to completion (s)
10.0
25.0
60.0
41
10.0
40.0
60.0
23
10.0
55.0
60.0
12
a) Describe a pattern you observe in Samuel's experimental results. In your answer, cite specific data from the table above.
BIVEE I A I
On analysis of the reaction trials, it is observed that the mass of baking soda and the volume of the vinegar is kept constant. On increasing the temperature from 25 to 55 the rate of reaction increases by reducing the reaction time
gradually from 41s to 12s.
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