Question

What is the molar mass of NaCl?

• A. 58 g/mol
• B. 60 g/mol
• C. 62 g/mol
• D. 56 g/mol

Hint:

Remember: The molar mass of a compound is the sum of the atomic masses of all the atoms in the compound.

Answer 1

The Correct Option is A

Given: NaCl is composed of one sodium atom (Na) and one chlorine atom (Cl). Step 1: Atomic masses of sodium and chlorine From the periodic table: - The atomic mass of sodium (Na) is approximately \( 23 \, \text{g/mol} \), - The atomic mass of chlorine (Cl) is approximately \( 35.5 \, \text{g/mol} \). Step 2: Calculate the molar mass of NaCl The molar mass of NaCl is the sum of the atomic masses of sodium and chlorine: \[ \text{Molar Mass of NaCl} = 23 + 35.5 = 58.5 \, \text{g/mol} \] Answer: The correct answer is option (1): 58 g/mol.