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Calculate the number of moles of HCI present in 20 cm3 of a 0.75M solution of the acid.
The oxidation state of oxygen in tetraoxosulphate(VI) acid is
Calculate the mass of chlorine gas which occupies a volume of 1.12 dm3 at s.t.p. [CI = 35.5; Molar volume of gas at s.t.p. 722.4dm3]
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