Question

What is the molar mass, in grams, of a mole of an element equal to?
A. The number of electrons
B. The atomic weight of the element
C. The atomic number of the element
D. The number of neutrons in the element

Answer 1

The correct answer is B. The atomic weight of the element 

Answer 2

Answer : Molar mass is equal to the atomic weight of the element.

Explanation :

The ratio of the mass of a given substance to the amount of substance is called as the molar mass of that substance. It is denoted by M. Its SI unit is kg/mol but it is usually expressed in g/mol.

In simpler form it is equal to the atomic weight of the substance.

For example, the molar mass of water can be calculated as :

$M=2\times 1+2(8)=18\ g/mol$

Hence, the correct option is (B) "The atomic weight of the element".