Which of the following is a chemical change? A. soil drying as water evaporates B. a rock eroding as the wind removes particles
2 answers:
You might be interested in
0.000001ppm
Explanation:
Mass of fluoride = 500g
Volume of water = 500000liters
Unknown:
Parts per million of fluoride = ?
Solution:
The parts per million is the amount of solute in milligram dissolved in a liter of water or milligram per kilogram of solvent
It is a unit used to express very small concentration.
we need to convert g - mg
500g = 500 x 10⁻³mg = 0.5mg
Concentration in parts per million =
Concentration in parts per million = = 0.000001ppm
learn more:
Parts per million brainly.com/question/2854033
#learnwithBrainly