Compute benzene concentration

Reference no: EM13680320

Injection of 1ul of 19.5ppm benzene solution in MeOH solvent gave peak (k'=4.6) which is 10 higher than baseline noise. Column HP-1, 12m length, 0.32 mm I.D 0.1 u film thickness. Hold up time was 0.25 min Split vent flow was 78 ml/min. Compute benzene concentration which will give you the same response on the same system with 1ul splitless injection. Explain

Reference no: EM13680320

Questions Cloud

Explain what are the uncertainty in measurement : An infant's pulse rate is measured to be 133 +/- 7 beats/min. Explain what are the uncertainty as well as the percent uncertainty in this measurement

Compute the volume of the ammonia gas : Ammonia at 250 degrees C at 10atm has a critical temperature of 134.5 degrees C as well as a critical pressure of 111.3 atm. Compute the volume (L) of this ammonia gas.

Explain what is the ph of the solution : Compute the molar concentration of OH- ions in a 0.525 M solution of hypobromite ion BrO-; Kb=4.0*10^-6. Explain what is the pH of the solution

Explain we have assumed that the solid doesn''t dissociate : Explain we have assumed that the solid doesn't dissociate into more than one particle when dissolved. If this was an incorrect assumption as well as the solid did dissociate slightly.

Compute benzene concentration : Hold up time was 0.25 min Split vent flow was 78 ml/min. Compute benzene concentration which will give you the same response on the same system with 1ul splitless injection. Explain

Compute the concentration of io3 : Compute the concentration of IO3- in a 5.92 mM Pb(NO3)2 solution saturated with Pb(IO3)2. The Ksp of Pb(IO3)2 is 2.5 × 10-13. Presume that Pb(IO3)2 is a negligible source of Pb2 compared to Pb(NO3)2.

Define a greater preference for the equitorial position : Bromine is larger than chlorine however the equilibrium constant indicates that a chloro substituent has a greater preference for the equitorial position than a bromo substituent does. Propose an explanation for this fact.

Explain the geometry shape around a carbon atom : Explain the geometry shape around a carbon atom which has one double bond as well as two single bonds to its neighboring atoms. Explain what is the approximate angle between any two of these bond directions

Define why slow cooling tends to give better crystals : Define why slow cooling tends to give better crystals in a recrystallization than the crystals obtained upon rapid cooling.

User Account

All Pages