Dimethylglyoxime (DMG) is a carbon-hydrogen-nitrogen-oxygen compound with a molecular mass of 116.12 u. In a combustion analysis, a 2.464-g sample of DMG yields 3.735 g CO2 and 1.530 g H2O. In a separate experiment, the nitrogen in a 1.868 g sample of DMG is converted to NH3(g), and the NH3 is neutralized by passing it into 50.00 mL of 0.3600 M H2SO4(aq). After neutralization of the NH3, the excess H2SO4(aq) requires 18.63 mL of 0.2050 M NaOH(aq) for its neutralization. Using these data, determine for dimethylglyoxime the most plausible Lewis structure I don't understand the neutralization part. Can anyone give me clues on how to solve this?