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The heat of vaporization (delta)Hvap of carbon tetrachloride (CCl4) at 25 degrees C, is 39.4 kj/mol. If 1 mol of liquid carbon tetrachloride at 25 degrees C has an entropy of 216 J/K, what is the entropy of 1 mol of vapor in equilibrium with the liquid at this temperature?
Name 4 properties of a compound that is directly influenced by the polarity of the compond. And state the 2 most important factors that affect the
What is the total pressure in a 10.0 L container that contains 0.56 g of SF6, 2.3 g of NO, and 1.23 X 10^23 g of Co molecules at 300K
Explain why selectivity in isocratic HPLC system ideally should not depend on eluent composition. (Use thermodynamic derivation to support your explanation).
There is an increase in temperature of 56 K. Calculate the heat lost or gained by the system in response to this change in the external temperature.
When 2.00 g of hydrazine decomposed under constant-pressure conditions, 7.00 kJ of heat were transferred to the surroundings. What is delta H for the following reaction? 3 N2H4(l) --> 4 NH3(g) + N2(g)
What can you conclude from a graph where the plot of ln p (pressure) versus t (time) is linear instead of curved? (for conversion of methyl isonitrile into acetonitrile)
When an aqueous solution of sodium sulfite is added to an aqueous solution of hydrobromic acid, a gas evolves. Write the balanced chemical equation
How did the Dulong-Petit law fail to reproduce heat capacities of monatomic metals at low temperatures and how did Einstein explain and rectify this failure
a 1.150g of the hydrated salt ZnSO4. XH2O is dissolved in water and the sulfate ion is precipitated by adding an excess of BaCl2 solution. The mass of Pure and Dry BaSO4 precipitated obtained is 0.9335g. What is the formula of the zinc sulfate hyd..
Menthol, the organic substance in the pills can smell menthol cough drops, consisting of carbon, hydrogen and oxygen. A sample of 100.1 mg menthol burns in oxygen, yielding 282.9 mg of carbon dioxide and water 115.9mg.
Here are the solubilities of a particular solute at two different temperatures. Temperature (c) Solubility (g/100 g h2o) 20.0 42.0 30.0 86.0 Suppose that you have made a saturated solution of this solute using 47.0 g of water at 20.0 °C. How much ..
calculate the ph of a solution prepared by mixing 250. ml of 0.174 m aqueous hf density 1.10 gml with 38.7 g of an
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