question_answer

The value of one unified atomic mass unit is\[1.66\times {{10}^{-27}}kg\]. Calculate the mass of one atom of \[^{12}C\] in kilogram.

Answer:

                                    \[\text{1amu =}\frac{\text{1}}{\text{12}}\text{th}\]mass of one atom of \[^{12}C\]                 \[\therefore \] Mass of one atom of \[^{12}C\]                 \[=12amu=12\times 1.66\times {{10}^{-27}}kg\]                 \[\mathbf{=1}\mathbf{.992\times 1}{{\mathbf{0}}^{\mathbf{-26}}}\mathbf{kg}\mathbf{.}\]