At 27°C, 58.5g of sodium chloride is present in 250cm\(^3\) of a solution. The solubility of sodium chloride at this temperature is? (molar mass of sodium c...

Assessment: JAMB UTME - Chemistry - 2019 Subject: Chemistry

Question 1 Report

At 27°C, 58.5g of sodium chloride is present in 250cm\(^3\) 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}

Answer Details

Given the Mass of the salt = 58.5g
Volume = 250 cm

^{3}

= 0.25 dm

^{3}

Mass concentration =

\frac{M a s s}{V o l u m e}

\frac{58.5}{0.25}

= 234 gdm

^{- 3}

Solubility (in moldm

^{- 3}

\frac{234}{111}

= 2.11 moldm

^{- 3}

≊

2.0 moldm

^{- 3}

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