Read each scenario and determine the cause of invalid data. Renata wants to survey her 30 classmates about their favorite hobby. Her data can contain only 13 data points. 1Nev forgot to write down one data point, so he made it up.
2Keith accidentally left out a step when writing his experimental procedure.
3Adele recorded the distance between two objects in inches rather than centimeters.
inadequate data
false data
measurement or recording error
inability to reproduce data

)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.