7:
The ADA recommends levels of 0.7-1.2 ppm fluoride.
So i'd say B, 1 part per million. Just took the test and confirmed correct.
Really depends how much water you drink! I think most fluoridate jurisdictions in NA are 1ppm
7:
The ADA recommends levels of 0.7-1.2 ppm fluoride.
So i'd say B, 1 part per million. Just took the test and confirmed correct.
1 part per million
no more than 500 parts per million of fluoride, if you are planning on drinking the water, but even then it should be in extremely small quantities. Fluoride is a dangerous product.
The concentration of fluoride ions will decrease and the concentration of hydrogen fluoride will increase.
you need just the right amount of fluoride for optimal health (prevention of cavities). If the water in your area is fluoridated, then usually you do not need supplemental fluoride (you can look this up for your city). If the water is not fluoridated, then you should take supplemental fluoride, though it is most effective if applied as a varnish by a dentist. Too much fluoride can discolor the teeth (fluorosis), so you really shouldn't take supplements unless you know you need them.
If it has a greater concentration, it will be considered more basic or alkaline. So, with a higher concentration, you will not need as much baking soda in your neutralization reaction.
ADDITIONAL FLUORIDE IS A POISON - - - YOU CAN FIND NORMAL AMOUNT IN DRINKING WATER
Normally potting soils don't contain much fluoride at all. Fluoride is normally found in water, normally at about 5-10 parts per million
The amount [of stuff] in an object or substance is its mass.
The term for "the amount of solute dissolved in a given volume of solution" is "concentration"
Yes, because toothpaste contains fluoride which is poison to the human body. (If you swallow a big amount of toothpaste or drinks that include fluoride go to a doctor, if you swallow a little bit of fluoride you will be fine).
To measure concentration, you compare the amount of the solute to the total amount of the solution.
The amount of one material in a certain volume of another material?
The Concentration