Answer :
Final answer:
The molar mass of sodium chloride (NaCl) is calculated by adding the atomic masses of sodium (Na) and chloride (Cl). Therefore, for NaCl, the molar mass would be 23u (for Na) plus 35.5u (for Cl), which equals 58.5 grams.
Explanation:
In this case, the molar mass of sodium chloride (NaCl) is being sought. Sodium (Na) has an atomic mass of 23 atomic mass units (u) and Chloride (Cl) has an atomic mass of 35.5u. The molar mass of a substance is calculated by adding up the atomic masses of all the atoms present in one molecule of that substance. Therefore, the molecular mass of NaCl = (No. of Na atoms x Atomic Mass of Na) + (No. of Cl atoms x Atomic Mass of Cl) = (1 x 23u) + (1 x 35.5u) = 58.5u. Thus, 1 mole of sodium chloride (NaCl) will have a mass of 58.5 grams.
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