50 cm" of hydrogen is collected over water at 17°C and 750 mm pressure. Calculate
and 750 mm pressure. Calculate the volume of dry
gas at S.T.P. The vapour pressure at 17°C is 14 mm.
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Answer:
P=750-14=736mm
V=50cm^3
T=17+273=290K
P1=760mm
V=?
T1=273K
PV/t=P1V1/t1
736×50/290=760×V2/273
V1=736×50×273/290×760
=45.6 cm^3
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