Other Chemistry Answers

DEAR SIR
I HAVE A QUESTION ABOUT GAS CHROMATOGRAPHY-FID DETECTION LIMIT.
HOW TO CONVERT DETECTION LIMIT Pg C/S TO PPM MOL HYDROCARBON?FOR EXAMPLE 2PgC/s.to ppm mol propane?
BEST REGARDS
EDWARD

DEAR SIR
IN GAS CHROMATOGRAPHY FOR EXAMPLE FID DETECTOR DETECTION LIMIT IS PgC/s. how can i convert it to ppm mol propane for example?
best regards
edward

what do you mean emission and absorption spectra of hydrogen atom .

If 1.50g g of A reacts with 1.75g g of B what is the mass of C

Mixture of 100 ml 0.1 M H3PO4 and 100 ml 0.1 M NaOH will be

pH values of 0.1 M HCL and 0.1 M CH3COOH are

Among the following weakest conjugate base is

NO3-
CI-
CIO4-
CH3COO-

Ionic product of water is 4* 10^-13 at a particular temperature (t^0 C).The neutral point based on a pH scale at t^0 is

Dear sir
i want to determine water (100 ppm)in condensate sample by karlfisher coulometry method but our sample have H2S concentration 600 ppmwt can interfere with karlfischer solution in ASTM E203 CORRECTION IS ONLY FOR MERCAPTAN can you guide me how can i?
best regards
EDWARD

X2 + 3Y2 --> 2XY3 triangle H1= -320 kJ
X2 + 2Z2 --> 2xZ2 triangle H2= -170 kJ
2Y2 + Z2 --> 2Y2Z triangle H3= -250 kJ
Calculate the change in enthalpy for the following reaction:
4XY3 + 7Z2 --> 6Y2Z + 4XZ2
Triangle H =____?___ kJ