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Problem- The retention factor, Rf, is a quantity used in all types of chromatography to determine effectiveness of solute separation. Describe the mathematical basis of the Rf and tell how it is used
Provide complete steps to solve the above question any help is appreciated
A water carbonating plant operates by providing carbon dioxide at 5.0 atm. Estimate the molar concentration of CO2 in carbonated water it produces at 25 ºC.
Problem- If an object has been magnified 106 times and appears to be 10-4 m, what is the actual size of the object in pm. Enter your answer in decimal notation, using no units.
what is the concentration of ammonia in a solution if 20.75ml of a .1130M solution of HCl are needed to titrate 100.0mL of that solution
Can anyone help post a separation scheme for eugenol from cloves using steam distillation first and then extraction
What volumes of 0.1000M Acetic Acid and 0.1000M Sodium Hydroxide should be mixed to prepare 1.000L of a buffer solution of pH 4.5 at 250C
When an ion-selective electrode for X was immersed in 0.0680 M XCl, the measured potential was 0.0400 V. What is the concentration of X when the potential is 0.0550 V
what is the molality of a solution of glucose that contains 48.0 g of c6h12o6 dissolved in 410.0 g of water? use molar
Classify the following bonds as ionic, polar covalent, or covalent, and give your reasons: (a) the CC bond in H3CCH3, (b) the KI bond in KI, (c) the NB bond in H3NBCl3, (d) the CF bond in CF4.
most scientists agree that the earth is 4.5 billion years old. 50 years from noe, how many sig figs will we record in the age of the earth
What is the mass of the product after the reaction between 250 mg of trans-cinnamic acid and 0.6 g of pyridinium bromide perbromide with 5% of impurities in 6 mL of acetic acid. Yield is 90%
Calculate the standard change in Gibbs free energy for the following reaction at 25 °C. 2C2H6 (g) + 7O2 (g) -> 4CO2 (g) + 6 H2O (g) ? kJ
What is the frequency difference in these shifts, assuming that TMS is tuned to a frequency of 120 MHz. What would be the frequency difference for the above shifts using a 600 MHz instrument
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