Answered

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1. What is the molar mass of sodium chloride, NaCl?

A. 53.02 g/mol
B. 58.44 g/mol
C. 102.8 g/mol
D. 112.5 g/mol

Sagot :

GinnyAnswer
To determine the molar mass of sodium chloride (NaCl), we need to know the molar masses of its constituent elements, sodium (Na) and chlorine (Cl).

1. Find the Molar Mass of Sodium (Na):
- The molar mass of sodium (Na) is 22.99 g/mol.

2. Find the Molar Mass of Chlorine (Cl):
- The molar mass of chlorine (Cl) is 35.45 g/mol.

3. Calculate the Molar Mass of Sodium Chloride (NaCl):
- Sodium chloride (NaCl) is composed of one atom of sodium and one atom of chlorine.
- Therefore, the molar mass of NaCl is the sum of the molar mass of sodium and the molar mass of chlorine.
- Molar Mass of NaCl = Molar Mass of Na + Molar Mass of Cl
- Molar Mass of NaCl = 22.99 g/mol + 35.45 g/mol
- Molar Mass of NaCl = 58.44 g/mol

Thus, the molar mass of sodium chloride (NaCl) is 58.44 g/mol.

The correct answer is B: 58.44 g/mol.
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