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Explain the following data are given for . Normal melting point, -23C , normal boiling point, 77C; density of liquid 1.59g/ml ;vapor pressure at 25C , 110 Torr.
Explain how much heat is required to vaporize 2.00 L of CCl4 at its normal boiling point?
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz ({\rm MHz}), where 1\; {\rm MHz}=10^6\; {\rm Hz}. Calculate the broadcast wavelength of the radio station 102.7 FM
If a stream of N2O is passed through a tube 30mm in diameter and 25cm long at a flow rate of 0.7L/min, at what temperature should the tube be maintained to have a partial pressure of 1.0mm of O2 in the exit gas? Assume that the total pressure of t..
At a particular temperature the equilibrium constant for the reaction: H2(g) + F2(g) ? 2HF(g) is K = 36.0. A reaction mixture in a 10.00-L flask contains 0.42 moles each of hydrogen and fluorine gases plus 0.15 moles of HF.
calcium carbide cac2 reacts with water to form acetylene.cac2s2h2ol gt c2h2g caoh2sahow many grams of water are needed
A 3.664-g sample of a monoprotic acid was dissolved in water. It took 20.27 mL of a 0.1578 M NaOH solution to neutralize the acid. Calculate the molar mass of the acid.
Many cigarette lighters contain liquid butane. Using standard enthalpies of formation, calculate the quantity of heat produced when 5.00 g of butane is completely combusted in air under standard conditions.
Use the ideal gas law to calculate the concentrations of nitrogen and oxygen present in air at a pressure of 1.0 and a temperature of 298 .
chcooh harr ch3coo- h write the equilibrium expression for the reaction. what is the concentration of h if the ph is
the values of Hfo given in kJ/mol, calculate the value of ?Go in kJ for the combustion of 1 mole of propane to form carbon dioxide and gaseous water at 298 K.
A packing crate measures 0.40m X 0.40m X 0.25m. You must fill the crate with boxes of cookies that each measure 22.0cm X 12.0cm X 5.0cm. How many boxes of cookies can fit into the crate?
Calculate the pH of a buffer solution obtained by dissolving 22.0 g of KH2PO4(s) and 40.0 g of Na2HPO4(s) in water and then diluting to 1.00 L
Define how many moles of Hydrogen ions are concerned in one equivalent of an acid-base reaction and is it probable to have an non-integral values of Valence or Oxidation state
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