1. co-pilot - a pilot who helps the main pilot on an aircraft 2. disable - to cause someone to have an illness, injury, or condition that makes it difficult for them to do the things that other people do 3. repopluate - to provide a new population for an area in which the population has declined 4. recalculate - to calculate again, especially in order to eliminate errors or to incorporate additional factors or data 5. impossible - describes a situation that is extremely difficult to deal with or solve 6. international - describes a situation that is extremely difficult to deal with or solve 7. irregular - not according to usual rules or what is expected 8. misunderstood - incorrectly understood or interpreted 9. miscalculate - to count or estimate incorrectly 10
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 a gas at normal conditions (Vo, [dm3]). P× V × T 0 V 0= P0 × T 103550 Pa× 0,31 2dm 3 ×273 K V 0 ;CO = =0,3,061 dm3 2 101325 Pa ×293,5 K 2. Calculate the mass of air using air density at normal conditions: 0 mair = pair × V 0 ,[g ] mair =1,290,312=0,40248[ g] 3.Calculate the mass of the flask with a stopper from the difference:
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