Question

the mass of an oxygen atom is 16u.
find the mass in kg​

Answer 1

atomic mass unit or amu or u = $\frac{1}{6*10^{23} }$ g = $1.66*10^{-24}$ grams

so 16u = 16 x $1.66*10^{-24}$ grams

=2.656 x $10^{-23\\}$g

we know 1kg = $10^3$g

so 1g = $10^-3$ Kg

therefore, 16u = 2.656 x $10^{-23\\}$g = 2.656 x $10^{-26}$Kg

please appreciate my hardwork in making you these equation from brainly