How many atoms of fluorine are present in 1.9 xx 10^(-6) gram of fluorine ? The atomic mass of fluroine is 19 amu.

How many atoms of fluorine are present in 1.9 xx 10^(-6) gram of fluor

1.	How many atoms of fluorine are present in 1.9 xx 10^(-6) gram of fluorine ? The atomic mass of fluroine is 19 amu.
Answer» SOLUTION :Gram atomic MASS of fluorine = 19.0 G 19.0 gram of fluorine have atoms `= 6.022 xx 10^(23)` `1.9 xx 10^(-6)` gram of fluorine have atoms `= (6.022xx10^(23)xx(1.9xx10^(-6)g))/((19.0g))=6.022xx10^(16)` atoms.