Home
Class 12
CHEMISTRY
An elemental crystal has density of 8570...

An elemental crystal has density of `8570 kg m^(-3)`. The packing efficiency is `0.68`. If the closest distance between neighbouring atoms is `2.86 Å`. The mass of one atom is `(1 amu = 1.66 xx 10^(-27))kg)`

Text Solution

Verified by Experts

The correct Answer is:
93
Promotional Banner

Similar Questions

Explore conceptually related problems

Use Avogadrs's number to show that the atomic mass unit is 1 u =1.66 xx 10^(-27) kg .

A solid has a b.c.c. structure . If the distance of closest approach between the two atoms is 1.73 Å . The edge length of the cell is :

Calculate the frequency of revolution of a hydrogen molecule at 27^(@)C about it own axis, assuming it to be diatomic with distance between the atoms as 1.5 Å . Mass of each atom is 1.67 xx 10^(-27)kg. k = 1.38 xx 10^(-23) JK^(-1)

Order of magnitude of density of uranium nucleus is , [m = 1.67 xx 10^(-27 kg]

Calculate the density ("in kg m"^(-3)) of potassium having a bcc structure with nearest neighbour distance of 4.52Å . (Given atomic weight of potassium is 39)

A: 1 "a.m.u." = 1.66 xx 10^(-24) gram. R: Actual mass of one atom of C-12 is equal to 1.99 xx 10^(-23) g

3.011 xx 10^22 atoms of an element weighs 1.15 gm . The atomic mass of the element is :

A hydrogen atom emits a photon corresponding to an electron transition from n = 5 to n = 1 . The recoil speed of hydrogen atom is almost (mass of proton ~~1.6 xx 10^(-27) kg) .

A hydrogen atom emits a photon corresponding to an electron transition from n = 5 to n = 1 . The recoil speed of hydrogen atom is almost (mass of proton ~~1.6 xx 10^(-27) kg) .

The key feature of Bohr's spectrum of hydrogen atom is the quantization of angular momentum when an electron is revolving around a proton. We will extend this to a general rotational motion to find quantized rotational energy of a diatomic molecule assuming it to be rigid.The rule to be applied is Bohr's quantization condition. In a CO molecule, the distance between C (mass = 12 a. m. u ) and O (mass = 16 a.m.u) where 1 a.m.u = (5)/(3) xx 10^(-27) kg , is close to