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What is the pH of a solution made by dissolving 2.81 grams of calcium fluoride in...

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Chemistry

What is the pH of a solution made by dissolving 2.81 grams ofcalcium fluoride in enough water to make 450 mL of solution? The Kafor HF is 6.8x10–4.

Write a chemical equation for the hydrolysis reaction thatexplains why an aqueous solution of CH3NH3Cl is acidic.

Calculate the pH of a 1.22×10-2 M solution of thedecongestant ephedrine hydrochloride if the pKb of ephedrine (itsconjugate base) is 3.86.

Answer & Explanation Solved by verified expert
3.6 Ratings (336 Votes)
1 Given that Mass of calcium fluoride 281 g Molar mass of caF2 78 gmol We know moles mass molar mass 281 78 0036 mol Now calculate the molarity of the calcium fluoride solution Molarity    See Answer
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