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Based on your knowledge of the TLC of the components of Excedrin, propose an experiment that would separate these components, including the order of elution off a chromatography column.
Estimate the vapor pressure at 45 degrees C using the Clausius-Clapeyron equation and the two given data points.
The vapor pressure and enthalpy of vaporization of an unknown substance are measured to be 204.2 torr and 28.8 kJ/mol, respectively at room temperature (298.15 K). Estimate the normal boiling point of the substance at an atmospheric pressure of 76..
The specific heat capacity of the solution produced was 4.20 J/g•°C, and final temperature reached was 34.91°C. How much heat was produced by the dissolution
A semipermeable membrane is placed between the following solutions. Which solution will decrease in volume? Solution A: 1.31% (m/v) starch Solution B: 7.48% (m/v) starch
What statement in incorrect about the following pairs of sugars? Galactose and mannose are diastereomers
One way to isolate metals from their ores is to react the metal oxide with carbon as shown in the following reaction: 2MO(s) + C(s) → 2M(s) + CO2(g)
Mass of Carbonates Needed to Raise Solution pH One Unit, An actual lab titration of a mildly acidic process water at a pH of 4.0 requires 0.9 grams/liter of Na2CO3 to raise the pH from 4.0 to 5.0; re-running the titration but this time using CaCO3..
A gaseous mixture of 02, H2 and N2 has a total pressure of 1.50atm and contains 8.20g of each gas. Find the partial pressure of each gas in the mixture?
Calculate the pH of a solution resulting from mixing together the following: a) 37ml of HCL 0.1M+33ml of NaOH 0.03M b) 55ml of HNO3 0,7M+88ml of KOH 0.8M c) 170 ml of H2SO4 0,44M_29ml of NaOH 1.2M d)76 liters of HBr 0.01M+2 liters of Mg(OH)2 2.1M.
How is a "charge" different from a mortgage?
What happens to the amount of ionisation as we increase the ionic strength of a solution? What happens to the solubility of a salt and what is meant by the various terms we use when discussing analytical techniques?
What is the purpose of the gas trap in the reaction set-up? (Hint: What gas(es) are present?What are their safety issues?)
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