?Sodium carbonate is often added to laundry detergents to soften hard water and make the
Chapter 5, Problem 89(choose chapter or problem)
Sodium carbonate is often added to laundry detergents to soften hard water and make the detergent more effective. Suppose that a particular detergent mixture is designed to soften hard water that is \(3.5 \times 10^{-3}\) M in \(Ca^{2+}\) and \(1.1 \times 10^{-3}\) M in \(Mg^{2+}\) and that the average capacity of a washing machine is 19.5 gallons of water. If the detergent requires using 0.65 kg detergent per load of laundry, what percentage (by mass) of the detergent should be sodium carbonate in order to completely precipitate all of the calcium and magnesium ions in an average load of laundry water?
Text Transcription:
3.5 x 10^-3
H_2SO_4
1.1 x 10^-3
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