Question

The mass of a mole of NaCl is the
A) 58.44 gm/mol
B) 57.25 gm/mol
C) 56.31 gm/mol
D) 59.14 gm/mol

Answer 1

The mass of a mole of NaCl is the
A) 58.44 gm/mol
B) 57.25 gm/mol
C) 56.31 gm/mol
D) 59.14 gm/mol

=> Option A

Answer 2

answer : option (A)

explanation : you should know that mass of one mole of any compound is known as molecular weight of that compound.

so, mass of one mole of NaCl = molecular weight of NaCl

= atomic mass of Na + atomic mass of Cl

we know, atomic mass of Na = 22.98 g/mol

and atomic mass of Cl = 35.45 g/mol

now, molecular weight of NaCl = 22.98 + 35.45 = 58.43 g/mol

hence, this is nearest value of 58.44g/mol

so, option (A) is correct choice.