Ag2S forms a black precipitate and CdS forms a dark yellow precipitate. A solution of CdS is prepared by dissolving 0.25 moles of solid CdS in distilled water. When equilibrium is established, a small amount of dark yellow solid remains on the bottom. A 0.25 mol if solid AgNO3 is then stirred into the beaker, and the dark yellow precipitate is replaced with a black precipitate.
I. Did the following equilibrium shift after the AgNO3 was added? Explain using 2-3 sentences.
CdS (s) equilibrium arrows Cd 2+ (aq) + S 2- (aq)
II. Which compound has the larger Ksp value? Justify your answer.
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Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg
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Determine the wavelength of the light absorbed when an electron in a hydrogen atom makes a transition from an orbital in the n=3 level to an orbital in the n=7 level.
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