Use tflon or ungreased stopcock rather than greased

Reference no: EM13165619

why is preferable to use tflon or ungreased stopcock rather than greased stopcock in column chromatography experiment?

Reference no: EM13165619

Questions Cloud

The cast function to return the date added column : A column that uses the CAST function to return the DateAdded column with its full time only (hour, minutes, seconds, and milliseconds)

Write the decayreaction for this isotope : Write the decayreaction for this isotope and explain your prediction in terms of N/Zratio.

Case for global accounting standards : The case for global accounting standards by Professor Ann Tarca (UWA) and analyse what the key points are of the report. Then prepare a report either supporting or challenging the position of the author.

Calculate the theoretical yield of c2h5cl : Calculate the theoretical yield of C2H5Cl when 110 g of C2H6 reacts with 226 g of Cl2, assuming that C2H6 and Cl2 react only to form C2H5Cl and HCl.

Use tflon or ungreased stopcock rather than greased : why is preferable to use tflon or ungreased stopcock rather than greased stopcock in column chromatography experiment?

Is the efficiency of a carnot engine affected by the heat : Is the efficiency of a carnot engine affected by the heat capacity of the gas. i.e if the heat capacity varies with temperature.

What is the vapor pressure of solution : a solution is prepared by dissolving 396 grams of sucrose in 624 grams of water. what is the vapor pressure of this solution at 30 degrees celsius.

Draw the rearranged cation that will eventually lead : The solvolysis product of 1-bromo-2,2-dimethylbutane with ethanol initially forms the expected carbocation but does not give any of the expected 1-ethoxy-2,2-dimethylbutane. Draw the rearranged cation that will eventually lead to the product.

How many grams of the compind potassium chloride : how many grams of the compind potassium chloride must be dissolved in 200 grams of water to make a saturated solution at 60 C.

User Account

All Pages