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What Is The Solubility Of A Salt X At 25ºC If The Saturated Solution Of The Salt Contains 0.28g In 100cm³ Of The Solution In Mol/dm³? [ X = 56.0g ] - Erudites Academy
Categories: Chemistry WAEC

What is the solubility of a salt X at 25ºC if the saturated solution of the salt contains 0.28g in 100cm³ of the solution in mol/dm³? [ X = 56.0g ]

A. 0.05
B. 0.10
C. 2.60
D. 2.80

Correct Answer:

Option A – 0.05

Explanation

(mass / molar mass) X (1000 / vol )

(0.28 / 56.0) X (1000 / 100 )

= 2.8 / 56

= 0.05 mol\dm³

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