Molaarmassi määramine süsinikdioksiidi kolmel erineval viisil
two sets, afterwards add the two results.
6. Fix the temperature and the pressure in the room with a thermometer and a barometer
during the experiment and write the data into Table 2.
Table 2. Temperature and pressure measured before starting the experiment
Symbol Pressure (Pa) Symbol Temperature (K)
The normal conditions Po 101325 To 273,00
Measured value P 103550 T 293,50
Results of experiment
m1=148,66 g
m2=148,82 g
V CO =V air =250 cm 3 +62 cm3 =312 cm3=0,31 2 dm 3=0,31 2× 10-3 m3
2
P=10355 0 Pa
T =19,5=293,5 K
Given data
g
M air =29,0
mol
g
°air =1,29 3
dm
Calculation
I Mass of carbon dioxide in the flask
1. Knowing the volume of a gas in a flask (measured in step 5), recalculate the volume of
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