Zadania z chemii IB HL

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State the molecular formula of HA, using your answers to (a) and (b).

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$10.0\ \mathrm{cm^3}$ of a gaseous hydrocarbon, $\ce{C_xH_y}$ , is burned completely in exactly the required volume of oxygen. The gaseous products occupy $70.0\ \mathrm{cm^3}$ . This falls to $30.0\ \mathrm{cm^3}$ once the water vapour present condenses, with…