Randy Holmes-Farley
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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.
If you have an accurate magnesium measurement of 1364 ppm before lowering it, what will the magnesium be closest to after lowering it?
A. 1306 ppm
B. 1313 ppm
C. 1324 ppm
D. 1342 ppm
E. 1351 ppm
Good luck!
Previous question of the day:
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.
If you have an accurate magnesium measurement of 1364 ppm before lowering it, what will the magnesium be closest to after lowering it?
A. 1306 ppm
B. 1313 ppm
C. 1324 ppm
D. 1342 ppm
E. 1351 ppm
Good luck!
Previous question of the day:
Reef Chemistry Question of the Day #282: Temperature Effects on Parameters
Reef Chemistry Question of the Day #282 Suppose your coral reef aquarium is chugging along nicely at 80 degrees F. You withdraw a sample to run some tests, and the temperature drops to 72 degree F before you are ready. Which of the following parameters will NOT have changed as the temperature...
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