Explain the quantity of acetylene hc+ch in a gas mixture

Reference no: EM13273052

The quantity of acetylene (HC+CH) in a gas mixture was measured by mass spectrometry, in which the signal for mass number 26 is proportional to the volume percent of acetylene. Gas Signal (mV) Blank containing no acetylene 0.2 Unknown 10.8 Unknown + 0.072 vol % C2H2 17.1 Unknown + 0.121 vol % C2H2 20.2 Unknowsn + 0.200 vol % C2H2 30.0 Unknown + 0.364 vol % C2H2 44.6 (a) Subtract the blank value (0.2 mV) from each measured signal. Prepare a graph to find the volume percent of acetylene in the unknown. (b) Use the method of least squares to find the uncertainties in slope and intercept of your graph and to estimate the uncertainty in the answer to part a.

Reference no: EM13273052

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