a=3m, b=4m, c=3mv=a*b*cv=3m*4m*3mv = 36m336m3 powietrza ----- 100%xm3 tlenu ------------- 21%x = 7,56m3 tlenuv=7,56m3d=1,309g/dm3=1,309kg/m3m=v*dm=7,56*1,309m = 9,9kg tlenu
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a=3m, b=4m, c=3m
v=a*b*c
v=3m*4m*3m
v = 36m3
36m3 powietrza ----- 100%
xm3 tlenu ------------- 21%
x = 7,56m3 tlenu
v=7,56m3
d=1,309g/dm3=1,309kg/m3
m=v*d
m=7,56*1,309
m = 9,9kg tlenu