Understanding Dilution
Dilution is the process of reducing the concentration of a solution by adding more solvent (in this case, water). The key principle is that the total amount of solute (ammonium nitrate) remains the same, even though the volume increases.
Calculations
1. Calculate the moles of NH4NO3 in the initial solution:
* Moles = Molarity x Volume (in liters)
* Moles = 0.436 M x 0.050 L = 0.0218 moles NH4NO3
2. Since the moles of NH4NO3 remain constant, the new concentration can be calculated using the final volume:
* New Molarity = Moles / New Volume (in liters)
* New Molarity = 0.0218 moles / 0.250 L = 0.0872 M
Answer: The ammonium nitrate concentration in the resulting solution is 0.0872 M.
