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Subject: Chemistry, asked on 13/9/16

What will be the packing fraction of a NaCl type of solid if ions along an axis connecting opposite face centres are absent?

Subject: Chemistry, asked on 13/9/16

AgClhas the same structure as that of NaOH. The edge length of unit cell of AgCl is found to be 555 pmand the density of AgClis 5.561 g/cm^3, Find the percentage of sites that are unoccupied. Ans-0.24%

Subject: Chemistry, asked on 27/8/16

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Subject: Chemistry, asked on 17/8/16

What is isotropic?

Subject: Chemistry, asked on 31/7/16

why fcc has highest packing efficiency

Subject: Chemistry, asked on 21/7/16

CsClhas bccarrangement and its unit cell edge length is 480 pmcal the inner ionic distance

Subject: Chemistry, asked on 21/7/16

an element crystallises in a simple cubic structure . its density is 8g/cc and its 200g contains 2.4 x 10 to the power23atoms cal the edge length

Subject: Chemistry, asked on 19/7/16

what are the units of density and edge length in the formula
d = ZM/a cube into avogadro no.

Subject: Chemistry, asked on 19/7/16

KCNhas density 1.52 g/cc and it crystallises in NaCl type of structure . Calculate the distance between K+ and Cl- ions

Subject: Chemistry, asked on 17/7/16

which wtrrrttttgfuywwm

Subject: Chemistry, asked on 12/7/16

a compound P Qhas a rock salt type structure withP:Q=1:1. if the formula mass of P Qis 6.023y g mol-1 and the closest P-Qdistance is y 1/3 nm then the density of the crystal is ?
ans is 5Kg m-3

Subject: Chemistry, asked on 11/7/16

Q.17

Subject: Chemistry, asked on 10/7/16

KCl crystallizes in the same type of lattice as does NaCl. Given that rNa+/rCl​- is equal to0.55 and rK+/rCl-is equal to 0.74 calculate the ratio of the side of the unit cell for KClto that ofNaCl.

Subject: Chemistry, asked on 2/7/16

if Al3+ replaces Na+ at the edge centre of NaCl lattice then calculate vacancies in 1 mole of NaCl?
​answer is .3.0125*1023
please explain

Subject: Chemistry, asked on 30/6/16

if Al 3+ replaces Na+ ion at the edge centre of NaCllattice then calculate the vacancies in 1 mole of NaCl?
actual ​ans ..3.011*1023and ur answas 1.2044*1019.

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