[填空题]
Estimate the number ofn:k) s4 rmxqr8x p;6b svj7)bd air molecules in a room of length 6.5 m, wa8e6r:)(u1i (ikq evousjb om6(wd ,width 3.1 m, and height 2.5 m. Assume ouveibdam18weo ujir(6:ks6(() , qw the temperature is 22$^{\circ} $C. How many moles does that correspond to? $\times10^{27 }$ molecules moles