At 27°C, 58.5g of sodium chloride is present in 250cm...
At 27°C, 58.5g of sodium chloride is present in 250cm3 of a solution. The solubility of sodium chloride at this temperature is?
(molar mass of sodium chloride = 111.0gmol−1)
2.0 moldm−3
0.25 moldm−3
1.0 moldm−3
0.5 moldm−3
Correct answer is A
Given the Mass of the salt = 58.5g
Volume = 250 cm3 = 0.25 dm3
Mass concentration = MassVolume
= 58.50.25 = 234 gdm−3
Solubility (in moldm−3 = 234111
= 2.11 moldm−3
≊ 2.0 moldm^{-3}
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