Answer :
Final answer:
To calculate the milliliters of 23.4% sodium chloride that should be added to the PN, we need to determine the amount of sodium chloride required based on its molecular weight and concentration. First, convert the concentration to grams using the volume and density of the solution. Then calculate the moles of sodium chloride using the mass and molar mass. Finally, convert the moles to milliliters using the molar volume of the solution.
Explanation:
To calculate the milliliters of 23.4% sodium chloride that should be added to the PN, we need to determine the amount of sodium chloride required based on its molecular weight and concentration. The molecular weight of sodium (Na) is 23 g/mol, and the molecular weight of chlorine (Cl) is 35.5 g/mol.
We can start by calculating the number of moles of sodium chloride needed using the equation: moles = mass / molar mass. The mass of sodium chloride can be determined using the concentration and volume of the solution.
Given that the concentration of sodium chloride is 23.4%, we can convert it to grams by multiplying it by the total volume of the solution (in mL) and the density of the solution. The density of a 23.4% sodium chloride solution is approximately 1.2 g/mL.
Once we obtain the mass of sodium chloride, we can divide it by the molar mass to calculate the number of moles. Finally, we can convert the moles to milliliters using the molar volume of the solution, which is equal to the volume in mL divided by the number of moles.
