Calculate the mole fraction of the ionic species kcl in the solution.

The question is incomplete, here is the complete question:

Calculate the mole fraction of the ionic species KCl in the solution A solution was prepared by dissolving 43.0 g of KCl in 225 g of water.

The mole fraction of KCl in the solution is 0.044

Explanation:

To calculate the number of moles, we use the equation:

     .....(1)

Given mass of water = 225 g

Molar mass of water = 18 g/mol

Putting values in equation 1, we get:

Given mass of KCl = 43 g

Molar mass of KCl = 74.55 g/mol

Putting values in equation 1, we get:

Mole fraction of a substance is given by:

Moles of KCl = 0.577 moles

Total moles = [0.577 + 12.5] = 13.077 moles

Putting values in above equation, we get:

Hence, the mole fraction of KCl in the solution is 0.044

8 m/s because for him to get the same amount of energy as ray is putting out, bobby, who weighs half as much as ray, needs to run twice as fast.