"100500pa" - 1 õppematerjal

Tundmatu metalli identifitseerimine

Experimental Data 3 Water level before the reaction on the burette V 1=16,7 cm Water level after the reaction on the burette V 2=24,85 cm 3 3 Volume of the produced hydrogen V=|V2­V1|= 8,15 cm Air pressure Pair=100500Pa=753,81mmHg Temperature T =20 =293 K Pressure of the saturated water vapour at temperature t PH2O=17,5mmHg Relative humidity of air RH %=45,8  Calculations 1. Calculate the partial pressure of hydrogen. The saturated water vapour pressure at different temperatures is given in Table 1 2. Calculate the volume of a gas under normal conditions using the combined gas law V 0= ( ( P all- P H O -