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Predict the order of elution of a mixture of triphenylmethanol, biphenyl, benzoic acid, and methyl benzoate from an alumina column.This has to do with column chromatography and explain your reasoning.
If 6.40 multiplied by 10-9 mol of 176W emits 1.07 multiplied by 1015 positrons in 1.00 h, what is the decay constant
A household lightbulb is a blackbody radiator. Many light bulbs use tungsten filaments that are heated by electric current. What temperature is needed so that ?max=550nm?
Determine the theoretical yield in grams and the percent yield, if 21.8 g of K2CO3 is produced form reacting 27.8g K2O with 8.0 L of CO2 at STP.
a what is the total electron energy for be be and be?hint you may use a symbol rather than numbers to express theenergy
14 grams of water at 298 K are placed in an evacuated steel container whose volume is 10 L. If we assume that the volume of the liquid water may be ignored relative to the volume of the container, answer each of the following question
In the unbalanced reaction, Sn + HNO3 ---> Sn(NO3)2 + H2), 2.100 grams of Sn(NO3)2 was formed. How many grams of NO were formed and how many moles of HNO3 were reacted? (HINT: the coefficient of Sn is 3).
A compound containing only carbon, hydrogen and oxygen was analyzed by combustion analysis. Combustion of a 10.68g sample of the compound in excess oxygen gives 16.01g CO2 and 4.37g H2O.
The mass spectrum of an organic compound shows the relative abundances of M to be 85.12% and M+1 to be 0.9206%. Assuming the peaks are caused by C-12 and C-13 isotopes
which of the following obey the octet rule beh2 ccl3 seo2 2- pcl3 krcl2 no2? and if they do not obey the octet rule
The sulfuric acid acts as a catalyst to remove one molecule of water from 2 molecules of ethanol. What is the balanced equation for this reaction
a kilogram of aluminum metal and a kilogram of water are each warmed to 75 degree celsius and placed in two identical
Potassium permanganate (7.57 g) reacts with sulfuric acid (10.32 g) as per the chemical equation shown below. Which reactant will remain after the reaction is complete
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