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
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