The mass of one unit cell of NaCl is

1.	The mass of one unit cell of NaCl is
Answer» ANSWER: ONE unit cell of NaCl contains 4 NaCl units (ie) has mass Number of unit cell PRESENT in a cube shaped crystal of NaCl of mass 1 g = m×Na(M×Z) HENCE Z = 4 Molecular Weight of NaCl (M) = 58.5 m = 1.00 g Na=6.023×1023 Hence substitute the value in the above equation We get No. of unit cell in 1g =1×6.02×10234×58.5 ⇒2.57×1021

Answer»

ONE unit cell of NaCl contains 4 NaCl units (ie) has mass

Number of unit cell PRESENT in a cube shaped crystal of NaCl of mass 1 g = m×Na(M×Z)

HENCE Z = 4

Molecular Weight of NaCl (M) = 58.5

m = 1.00 g

Na=6.023×1023

Hence substitute the value in the above equation We get

No. of unit cell in 1g =1×6.02×10234×58.5

⇒2.57×1021

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