using the experimental data, calculate the density of the O2 gas produced in g/L...

S

Shaoling Shen

New member
...at STP.? Initial weight of pyrex tube +KCLO3 4.35
Final weight of pyrex tube + residue 6.3166
Final buret reading 37.3
Initial buret reading 0.2
Room temperature 22 oC
Barometric pressure 756.6 torr 756.6 x 1 atm/760 = 0.9955 atm
vapor presure of water at room teperature 19.8
weight of oxygen evolved 1.9666
Moles oxygen evolved 1.159375
volume of oxygen evolved 37.1
pressure of the oxygen gas 736.8 .9695 atm
volume of oxygen at STP 681.85 .8972 atm
molar volume* of oxygen at STP 21.31
 
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