Express unified atomic mass unit (amu) in kg. | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) One atomic mass unit $(amu)$ is defined as $\frac{1}{12}$ of the mass of a ${ }_{6} C^{12}$ atom.Mass of one mole of ${ }_{6} C^{12}$ atoms $= 12

Vedclass · Accepted Answer

$1.66 	imes 10^{-27} \ kg$

Vedclass · Answer

(A) One atomic mass unit $(amu)$ is defined as $\frac{1}{12}$ of the mass of a ${ }_{6} C^{12}$ atom.Mass of one mole of ${ }_{6} C^{12}$ atoms $= 12 \ g = 12 	imes 10^{-3} \ kg$.Number of atoms in one mole is given by Avogadro's number,$N_A = 6.022 	imes 10^{23} \ atoms/mol$.Mass of one ${ }_{6} C^{12}$ atom $= \frac{12 	imes 10^{-3} \ kg}{6.022 	imes 10^{23}} \approx 1.9926 	imes 10^{-26} \ kg$.$1 \ amu = \frac{1}{12} 	imes (	ext{mass of one } { }_{6} C^{12} 	ext{ atom})$.$1 \ amu = \frac{1}{12} 	imes \frac{12 	imes 10^{-3} \ kg}{6.022 	imes 10^{23}} = \frac{10^{-3}}{6.022 	imes 10^{23}} \ kg$.$1 \ amu \approx 1.66 	imes 10^{-27} \ kg$.

Express unified atomic mass unit $(amu)$ in $kg$.

Similar Questions

Explain isotopes,isobars,isotones,and isomers by giving examples.

An unstable heavy nucleus at rest breaks into two nuclei which move away with velocities in the ratio of $8:27$. The ratio of the radii of the nuclei (assumed to be spherical) is

Which of the following pairs of nuclei represents isotones?

Two spherical nuclei have mass numbers $216$ and $64$ with their radii $R_1$ and $R_2$ respectively. The ratio,$\frac{R_1}{R_2}$ is equal to

$F_{pp}$, $F_{nn}$, and $F_{np}$ are the nuclear forces between proton-proton, neutron-neutron, and neutron-proton respectively. Then the relation between them is:

Vedclass Test Series

Exam Paper Generator

Online Exam Module