jmuth4549 jmuth4549
  • 26-04-2024
  • Chemistry
Answered

A 500 g toothpaste sample has 0.2 g of fluoride. The concentration of fluoride ions in terms of ppm level is ___.
A.250 ppm
B.200 ppm
C.400 ppm
D.1000 ppm



Answer :

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