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How would the retention time of a solute in gas chromatography change if the flow rate of the carrier gas is slowed down?
A certain quantity of a gas occupies 61.3 mL at 68C. If the pressure remains constant, what would the volume of the gas be at 17C?
Then 10.00ml of this solution is diluted further to 100ml. What is the molarity of this last solution?
how many grams of methane ch4g must be combusted to heat 1.00 kg of water from 25.0degc to 90.0degc assuming h2ol as a
Calculate the number of grams of propane (C3H8) required to heat all of the water in a 50-gallon hot-water tank from 23.4 degrees C to 65.0 degrees C
The vapor pressure of ethanol is 100 mmHg at 34.9oC. Its molar heat of vaporization is 39.3 kJ/mol. What is the vapor pressure of ethanol in mmHg at 57.5 oC?
Above what Fe2+ concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 9.99? The Ksp of Fe(OH)2
determine the percent yield for the reaction between 28.1g of sb4o6 and excess c if 17.3 of sb is recovered along with
A 100.0ml sample of 0.100M methylamine(CH3NH2, kb=3.7x10-4) is titrated with 0.250M HNO3. Calculate the pH after the addition of each of the following volumes of acid. a) 0.0 ml b) 20.0 ml c) 40.0 ml d)60.0 ml
Further studies will refine how much water is needed for endangered species protection. States hope it will be the 130-150 KAF initially agreed upon rather than the 415 KAF the FWS thinks it is. What happen if cooperative agreement fails?
0.150 M HC2H33O2 (Ka=1.8E-5) is titrated with 0.300M NaOH, calculate the pH half way to the equivalence point
Why is there a difference in water soluility when looking at the structure of methyl ethyl ketone and chlorobenzene. Methyl ethyl ketone has a water solubility of 268 g/L, while chlorobenzene has a water solubility of 0.47 g/L.
A reaction that is spontaneous can be described as a releasing heat to the surroundings. b. increasing in disorder. c.proceeding in both the forward and reverse directions.
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