Description
To observe a bench top demonstration of a volcano eruption, understanding the pre-eruption chemistry and crystalline structure and observing its break down and change in physical state and expansion in volume during the volcanic reaction/episode.It is also important to observe the outcome impacts of such a reaction and understand the variables that affect the outcome.
There is a video in the file provided on a volcanic eruption. Describe what is happening, write a narrative, and use data to back up what is occurring.
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LAB 10 – AMMONIUM DICHROMATE VOLCANO DEMONSTRATION
PHYSICAL GEOGRAPHY LAB – GEOG 121L-006 S-2018
Objective:
To observe a bench top demonstration of a volcano eruption, understanding the
pre-eruption chemistry and crystalline structure and observing its break down
and change in physical state and expansion in volume during the volcanic
reaction/episode. It is also important to observe the outcome impacts of such a
reaction and understand the variables that affect the outcome.
Volcano Types:
SHIELD VOLCANO – a very large, gently sloping volcano built up by fluid basaltic
lava originating from small crystal oceanic crustal rock.
COMPOSITE VOLCANO – a large, steep-sloped conical volcano formed explosive
Pyroclastic eruptions of large crystal granites of continental crust origins;
sometimes referred to as Strato-volcanos.
CINDER CONE – a small non violent conical volcano that emits largely ash, dust
and gases.
Task One:
Observe and document all conditions of the material during the pre-eruption,
eruption and post eruption simulations. At room temperature and pressure, the
compound exists as orange, acidic crystals soluble in water and alcohol.
Using the following link: https://www.youtube.com/watch?v=Ula2NWi3Q34
Watch and observe the combustion reaction after ignition, and detail the
outcomes in a narrative presentation. The actual chemical reaction taking place
is: (NH4)2Cr2O7 + heat
Cr2O3 + N2 = 4H2O; the resulting solid is Cr2O3.
1
(What does water mean in this scenario?)
Deliverable:
Prepare a narrative that fully describes the entire simulation, with all
appropriate back-up documentation; and as part of the narrative determine
what type of volcano(s) was/were simulated in this demonstration (50 points).
2
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AMMONIUM DICHROMATE VOLCANO DEMONSTRATION
Initially, before the eruption, the color of the material (Ammonium dichromate cry...
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