Pada reaksi 2NH3 (g) à 3 H2 (g) + N2 (g) , sebanyak 5 mol NH3 dalam ruang 5 liter terurai . Jika dalam waktu 5 detik diperoleh 1 mol N2 , maka laju pembentukan gas H2 adalah… 1,2 M/ det
0,04 M/det
0,08 M/ det
0,12 M/det
1,2 M/det

)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+

Predict the relative bond lengths of the three carbon-oxygen bonds in the carbonate ion (co2−3). what would you expect the charge to be on each oxygen? match the words in the left column to the appropriate blanks in the sentences on the right. make certain each sentence is complete before submitting your answer.