Answer to Question #48517 in Inorganic Chemistry for Claire
My attempt so far:
With K1=9.1×10−8 and K2=1.3×10−18 respectively
pH=7 -> [H3O+]=10−7 and 30 ppm S2− -> [S2−]=9.36×10−4
I worked out the equilibrium equation and found that [HS−]=9.36×10−4, which when plugged into the first equation implies [H2S] is also 9.36×10−4 because of the very small values of K. Is this correct so far, or have I missed something? It’s been a long time since my chemistry classes!
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