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If 18.7 grams of an aqueous solution of ammonium fluoride, NH4F, contains 1.26 grams of ammonium fluoride, what is the percentage by mass of ammonium fluoride in the solution?
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Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?
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If 18.7 grams of an aqueous solution of ammonium fluoride, NH4F, contains 1.26 grams of ammonium flu...
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