A miniature volcano can be made in the laboratory with ammonium dichromate. When ignited, it decomposes in a fiery display. (NH 4 ) 2 Cr 2 O 7 (s) → N 2 (g) + 4 H 2 O(g) + Cr 2 O 3 (s) If 0.95 g of ammonium dichromate is used and the gases from this reaction are trapped in a 15.0-L flask at 23 °C, what is the total pressure of the gas in the flask? What are the partial pressures of N 2 and H 2 O?
A miniature volcano can be made in the laboratory with ammonium dichromate. When ignited, it decomposes in a fiery display. (NH 4 ) 2 Cr 2 O 7 (s) → N 2 (g) + 4 H 2 O(g) + Cr 2 O 3 (s) If 0.95 g of ammonium dichromate is used and the gases from this reaction are trapped in a 15.0-L flask at 23 °C, what is the total pressure of the gas in the flask? What are the partial pressures of N 2 and H 2 O?
Solution Summary: The author explains how the ideal gas equation can be obtained by combining Boyle's, Charles’s Law and Avogadro.
A miniature volcano can be made in the laboratory with ammonium dichromate. When ignited, it decomposes in a fiery display.
(NH4)2Cr2O7(s) → N2(g) + 4 H2O(g) + Cr2O3(s)
If 0.95 g of ammonium dichromate is used and the gases from this reaction are trapped in a 15.0-L flask at 23 °C, what is the total pressure of the gas in the flask? What are the partial pressures of N2 and H2O?
What impact would adding twice as much Na2CO3 than required for stoichiometric quantities have on the quantity of product produced? Initial results attached
Given that a theoretical yield for isolating Calcium Carbonate in this experiment would be 100%. From that information and based on the results you obtained in this experiment, describe your success in the recovery of calcium carbonate and suggest two possible sources of error that would have caused you to not obtain 100% yield.
Results are attached form experiment
5) Calculate the flux of oxygen between the ocean and the atmosphere(2 pts), given that:
(from Box 5.1, pg. 88 of your text):
Temp = 18°C
Salinity = 35 ppt
Density = 1025 kg/m3
Oxygen concentration measured in bulk water = 263.84 mmol/m3
Wind speed = 7.4 m/s
Oxygen is observed to be about 10% initially supersaturated
What is flux if the temperature is 10°C ? (2 pts) (Hint: use the same density in your calculations). Why do your calculated values make sense (or not) based on what you know about the relationship between gas solubility and temperature (1 pt)?
Chapter 10 Solutions
OWLv2 6-Months Printed Access Card for Kotz/Treichel/Townsend's Chemistry & Chemical Reactivity, 9th, 9th Edition
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