Strontium fluoride is used to make optical material to produce devices due to its high conductivity and its optical properties similar to calcium fluoride. Strontium fluoride has the ability to transmit ultraviolet and infrared waves, which is why it is used in glass, windows, and lenses. Irritating to eyes and skin, and is toxic if inhaled or swallowed. If the Kps of strontium fluoride at 25 ° C is 2.90 × 10−9: a) Determine the molar solubility at 25 ° C. b) What are the fluoride ion concentration, in mol / L, in a saturated strontium fluoride

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