Question

If the density of NaCl = 2.165 g cm^-3  and the distance between Na⁺  and Cl^-  = 281 pm, Avogadro’s number is equal to........

(A) 7 × 10²³ mol^-1

(B) 8 × 10²³ mol^-1

(C) 6 × 10²³ mol^-1

(D) 4 × 10²³ mol^-1

Answer 1

Correct answer is: (C) 6 × 10²³ mol^-1