- Joined
- Sep 5, 2014
- Messages
- 66,553
- Reaction score
- 62,858
Reef Chemistry Question of the Day [HASHTAG]#190[/HASHTAG]
You are working on your RO/DI one day and you collect a tap water sample to measure its TDS. You measure it to be 93 ppm TDS.
You get interrupted by your dogs barking excitedly upstairs, and by the time you get back from dealing with the salesperson at the door, you have forgotten the container with the tap water.
A week later you spot it, but it clearly has evaporated significantly. In fact, while there is no apparent precipitate in it, the water volume looks to be 1/4 of what it was before.
Curious, you remeasure its TDS.
Which of the following values is most likely?
A. 23 ppm TDS
B. 47 ppm TDS
C. 93 ppm TDS
D. 186 ppm TDS
E. 372 ppm TDS
Good luck!
.
You are working on your RO/DI one day and you collect a tap water sample to measure its TDS. You measure it to be 93 ppm TDS.
You get interrupted by your dogs barking excitedly upstairs, and by the time you get back from dealing with the salesperson at the door, you have forgotten the container with the tap water.
A week later you spot it, but it clearly has evaporated significantly. In fact, while there is no apparent precipitate in it, the water volume looks to be 1/4 of what it was before.
Curious, you remeasure its TDS.
Which of the following values is most likely?
A. 23 ppm TDS
B. 47 ppm TDS
C. 93 ppm TDS
D. 186 ppm TDS
E. 372 ppm TDS
Good luck!
.