Question

Determine the mole fraction of each component in a solution in which 3.57 g of sodium chloride (NaCl) is dissolved in 25.0 g of water. Show the steps of the calculation.

Answer 1

Answer: The mole fraction of NaCl is approximately 0.042, and the mole fraction of water is approximately 0.958.

Explanation:

Calculate the number of moles of each component:

For NaCl:

Number of moles of NaCl = Mass of NaCl / Molar mass of NaCl

= 3.57 g / 58.44 g/mol

≈ 0.061 moles

For water:

Number of moles of water = Mass of water / Molar mass of water

= 25.0 g / 18.015 g/mol

≈ 1.387 moles

Calculate the total number of moles in the solution:

Total moles in the solution = Moles of NaCl + Moles of water

≈ 0.061 moles + 1.387 moles

≈ 1.448 moles

Calculate the mole fraction of each component:

Mole fraction of NaCl = Moles of NaCl / Total moles in the solution

≈ 0.061 moles / 1.448 moles

≈ 0.042

Mole fraction of water = Moles of water / Total moles in the solution

≈ 1.387 moles / 1.448 moles

≈ 0.958

Answer 2

22

because i did the calculation you would nee to divide it rehehe