Sodium tripolyphosphate (Na,P,O1) is used in many syn- thetic detergents. Its major effect is to soften the water by complexing Mg+ and Ca* ions. It also increases the effi- ciency of surfactants, or wetting agents that lower a liquid's surface tension. The K value for the formation of MgP,O is 4.0 x 10'. The reaction is Mg* (aq) + P,O, (aq) - MgP,O, (aq). Calculate the concentration of Mg* in a solution that was originally 50. ppm Mg* (50. mg/L. of solution) after 40. g Na,P,O10 is added to 1.0L of the solution.
Sodium tripolyphosphate (Na,P,O1) is used in many syn- thetic detergents. Its major effect is to soften the water by complexing Mg+ and Ca* ions. It also increases the effi- ciency of surfactants, or wetting agents that lower a liquid's surface tension. The K value for the formation of MgP,O is 4.0 x 10'. The reaction is Mg* (aq) + P,O, (aq) - MgP,O, (aq). Calculate the concentration of Mg* in a solution that was originally 50. ppm Mg* (50. mg/L. of solution) after 40. g Na,P,O10 is added to 1.0L of the solution.
Chemistry & Chemical Reactivity
10th Edition
ISBN:9781337399074
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Chapter20: Environmental Chemistry-earth's Environment, Energy, And Sustainability
Section20.7: Green Chemistry And Sustainability
Problem 2.1ACP: Assume that a sample of hard water contains 50. mg/L of Mg2+ and 150 mg/L of Ca2+, with HCO3 as the...
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Transcribed Image Text:Sodium tripolyphosphate (Na,P,O10) is used in many syn-
thetic detergents. Its major effect is to soften the water by
complexing Mg?+ and Ca+ ions. It also increases the effi-
ciency of surfactants, or wetting agents that lower a liquid's
surface tension. The K value for the formation of MgP,O,
is 4.0 x 10%. The reaction is Mg*(aq) + P,O,, (aq)
= MgP,O1, (aq). Calculate the concentration of Mg* in
a solution that was originally 50. ppm Mg?+ (50. mg/L of
solution) after 40. g Na,P,O10 is added to 1.0L of the solution.
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