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Write the correct formulas for the following covalent compounds a. dinitrogen tetrabromide b. phosphorous trihydride c. iodine trichloride d. oxygen difluoride e. carbon diselenide For each molecule in problem above (a) draw the Lewis structure with all bonds and lone pairs (b) indicate directions in all bond dipoles (c) indicate the molecular dipoles and (d) indicate the shape of each molecule.
As gas expands from 1.00 L to 2.50 L against constant pressure of 820 torr. Calculate the change in internal energy for the gas, if 120 J of heat is transferred to the gas during the expansion.
For HCB, log Kow = 6.6. What would be the predicted concentration (ppm) of HCB due to bio-concentration in the fat of fish that swim in waters containing 0.000010 ppm of the chemical?
how many grams of carbon are required to react with 1.5x10^25 atoms of hydrogen to form CH4
What volume of O2 at 684mmHg and 37degree celsius is required to synthesize 22.0 mole of NO2.
Calculate molarity of a KCl solution prepared by dissolving 0.525 moles of Kcl in 250. mL of water.
The standard molar enthalpy of vaporization for water is 40.79 kJ/mol. What mass of steam is required to release 500. kJ of energy upon condensation? (Molar mass of water is 18.02 g/mol.)
A solution (S1) of yellow # 5 has an absorbance far outside the linear region of Beer's law. In order to determine the concentration of this solution
The solvolysis of benzyl chloride proceeds via a carbocation intermediate and occurs more rapidly than the solvolysis of 2-chloro-norbornane and tertiary butyl chloride.
How long would it take for 1.50mol of water at 100.0 °C to be converted completely into steam if heat were added at a constant rate of 21.0 J/s?
An injection containing 10.0pg 10 5 B was injected into a patient suffering from a brain tumor. The patient was irradiated by a neutron gun at the site of the tumor.
How much heat in kilojoules is needed to bring 1.30 kg of water from 33.7 to 97.1 °C (comparable to making four cups of coffee)?
If 0.80 g of sulfur dioxide at 10.00 atm pressure (P) dissolves in 5.00 L of water at 25.0°C, how much of it will dissolve in 1 L of water at 9.00 atm pressure (P) and the same temperature?
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