Randy Holmes-Farley
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Reef Chemistry Question of the Day #284
The freezing point of 35 ppt seawater is described as being -2 °C (or 28.4 °F).
Suppose you take a sample from your aquarium with a salinity of 35 ppt and send it off through the mail for analysis on a very cold day.
At what temperature would all of the water in the sample first become ice as it cooled from room temperature?
A. 0 °C
B. -1 °C
C. -2 °C
D. -2.5 °C
E. less than -2.5 °C
Good luck!
Previous Reef Chemistry Question of the Day:
The freezing point of 35 ppt seawater is described as being -2 °C (or 28.4 °F).
Can the ocean freeze?
Sea water has been defined as a weak solution of almost everything. Ocean water is indeed a complex solution of mineral salts and of decayed biologic matter that results from the teeming life in the seas
oceanservice.noaa.gov
Suppose you take a sample from your aquarium with a salinity of 35 ppt and send it off through the mail for analysis on a very cold day.
At what temperature would all of the water in the sample first become ice as it cooled from room temperature?
A. 0 °C
B. -1 °C
C. -2 °C
D. -2.5 °C
E. less than -2.5 °C
Good luck!
Previous Reef Chemistry Question of the Day:
Reef Chemistry Question of the Day #283: Effect of Salinity on Magnesium Ion
Reef Chemistry Question of the Day #283 Suppose that a reef aquarium has a specific gravity of 1.027 and you decide to lower it to a specific gravity of 1.026. You accomplish this lowering by removing some salt water and replacing it with pure RO/DI water (0 ppm TDS) at the same temperature...
www.reef2reef.com