If the solubility of KHCO3 is 0.40 mole dm-3 at room temperature , calculate the mass of KHCO3 in 100dm3 of the solution at this temperature. [KHCO3 = 100hmol]

If the solubility of KHCO3 is 0.40 mole dm-3 at room temperature , calculate the mass of KHCO3 in 100dm3 of the solution at this temperature. [KHCO3 = 100hmol]

If the solubility of KHCO₃ is 0.40 mole dm^{-3 at room temperature , calculate the mass of KHCO₃ in 100dm³ of the solution at this temperature. [KHCO₃ = 100hmol]}

A 4.0g
B 10.0g
C 40.0g
D 100.0g

waec 1999 chemistry

The correct answer is A. 4.0g

No explanation given

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