[" How many unit cells are present in a cubeshaped ideal crystal of NaCl of mass "1.00g" ? "],[" How many unit cells as "23,c|=35.5J],[[" (1) "5.14times10^(2)" unit cells "," (2) "1.28times10^(21)" unit cells "],[(3)1.71times10^(22)" unit cells "," (4) "2.57times10^(21)" unit cells "]]