The ppm level of \[{{F}^{-}}\] in a 500 g sample of a tooth paste containing \[0.2g\text{ }{{F}^{-}}\] is

The ppm level of \[{{F}^{-}}\] in a 500 g sample of a tooth paste cont

1.	The ppm level of \[{{F}^{-}}\] in a 500 g sample of a tooth paste containing \[0.2g\text{ }{{F}^{-}}\] is
A.	400
B.	1000
C.	250
D.	200
Answer» B. 1000

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The ppm level of \[{{F}^{-}}\] in a 500 g sample of a tooth paste containing \[0.2g\text{ }{{F}^{-}}\] is

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