Since soap and laundry detergent are less effective in hard water, laundry products tend to include water softeners that remove the hard water ions (Ca2+and/orMg2+) from the water. If the hard water in your home is51ppm(mg solute/Lof solution)Mg2+, what is the concentration of Mg2+after 42 g Na5P3O10is added to your high-efficiency washing machine (which uses 53.0 L per load)? The equation below will be helpful: Mg2+(aq) + P3O105-(aq) ⇋MgP3O103-(aq)
Kf= 4.0 × 108