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How many atoms of fluorine are there in ...

How many atoms of fluorine are there in `1.9 xx 10 ^(-6)` gram of fluorine (F=19 amu)

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The correct Answer is:
`6..022 xx 10^16`
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MBD PUBLICATION-BASIC CONCEPT OF THEORY-QUESTION BANK
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  10. Calculate the number of molecules in 0.1 mole of SO2.

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  15. In a vessel 2 g of O2 2g Of H2 and 2 g of N2 are present. Which has th...

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  17. 18 g of water contains :

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