Calculate the value of avogadro number when density of nacl =2.165gm
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data,density is 2.165g/km³.distance between Na+ and cl- is 281pm(molar mass of Nacl is 58.5)
For NaCl lattice
a=2(r++r−)=2×281=562pma=2(r++r−)=2×281=562pm
d=Z×MNA×Vd=Z×MNA×V
2.61=4×58.5NA×(562×10−10)32.61=4×58.5NA×(562×10−10)3
NA=6.01×1023
For NaCl lattice
a=2(r++r−)=2×281=562pma=2(r++r−)=2×281=562pm
d=Z×MNA×Vd=Z×MNA×V
2.61=4×58.5NA×(562×10−10)32.61=4×58.5NA×(562×10−10)3
NA=6.01×1023
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