If youâre self-employed, youâre responsible for paying your own share of those Social Security and Medicare contributions, collectively known as SECA. But fear not! You too can be taxed just like your traditionally employed peers by claiming an SECA deduction on Line 27 of Form 1040. You will compute this amount as part of Schedule SE.
when the boiling point difference is less than 20 degrees; limited to larger samples in fractional distillation why are we using a GC in this experiment to determine the composition of the fractions I obtained from simple distillation
Both refluxing and distillation involve boiling of a solution. Stirring makes the solution boil more smoothly without becoming superheated. Without stirring, a liquid heated in a container can become superheated and release vapour suddenly, sometimes violently. This sudden bubble of gas can cause the solution and reagents to be thrown through the condensor, which is potentially dangerous, and can ruin the distillation.