Question

What is the mass of 1.84 mol NaCl? Give your answer to the correct number of significant figures. (Molar mass of NaCl = 58.44 g/mol)

Answer 1

The mass of 1.84 moles of NaCl is 107.53 grams, calculated by multiplying the number of moles by the molar mass of NaCl (58.44 g/mol).

Step-by-step explanation:

The mass of 1.84 moles of sodium chloride (NaCl) can be calculated by using the molar mass of NaCl. The molar mass of NaCl is 58.44 g/mol. By multiplying the number of moles by the molar mass, we can find the mass:

Mass of NaCl = number of moles × molar mass

Mass of NaCl = 1.84 mol × 58.44 g/mol

Mass of NaCl = 107.53 g

Thus, 1.84 moles of NaCl have a mass of 107.53 grams, rounded to four significant figures to match the precision of the given molar mass.

Answer 2

To calculate the mass, we use
mass = moles * molecular mass
mass = 1.84 * 58.44
mass = 107.5296
We will take three significant figures
108 g