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Calculate the melting point of a solution containing 20 g of benzoic acid (C6H5COOH) and 80 g of naphthalene (C10H8). The melting points of pure benzoic acid and naphthalene are 122.4 °C and 80.2 °C, respectively. The molal freezing point depression constant for naphthalene is 6.8°C/m.

asked Jan 23 in Physical Chemistry by PDQJenifer7 (2.0k points)

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Calculate the melting point of a mixture of 1 mol of benzene and 2 mol of toluene, given that the pure components have melting points of 5.5 °C and -95.0 °C, respectively.

asked Jan 23 in Physical Chemistry by JanieCorso7 (1.9k points)

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Calculate the melting and boiling points of Sodium Chloride (NaCl) using the Clausius-Clapeyron Equation given that the heat of fusion for NaCl is 28.9 kJ/mol, the heat of vaporization is 163.0 kJ/mol and the standard entropy change for phase transition is 72.14 J/K/mol.

asked Jan 23 in Inorganic Chemistry by ZKLBarbra368 (2.3k points)

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Calculate the mass of sodium chloride (NaCl) produced when 2.5 moles of sodium (Na) react completely with excess chlorine gas (Cl2). (Hint: Use the balanced chemical equation 2Na + Cl2 → 2NaCl)

asked Jan 23 in Chemical reactions by FranY1408156 (2.2k points)

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Calculate the mass of silver (Ag) that will be deposited on the cathode during electrolysis if a current of 2.5 A is passed through a solution of silver nitrate (AgNO3) for 3 hours.

asked Jan 23 in ElectroChemistry by MarquisMonte (1.9k points)

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Calculate the magnetic susceptibility (in cm3 mol-1) of a molecule with the following quantum numbers: S=1, L=2, and J=3/2 in the presence of an external magnetic field of 0.5 T.

asked Jan 23 in Quantum Chemistry by Miguel37A006 (2.3k points)

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Calculate the magnetic properties (magnetic dipole moment, total angular momentum, and g-tensor) of a water molecule using quantum chemical methods and compare them with the experimental values.

asked Jan 23 in Quantum Chemistry by HarleyOreill (1.9k points)

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Calculate the magnetic moment of the compound Ni(CO)4 using the crystal field theory and determine whether it is diamagnetic or paramagnetic.

asked Jan 23 in Inorganic Chemistry by JaninaDohert (2.2k points)

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Calculate the magnetic moment of Ni(CO)4 using the crystal field and molecular orbital theory.

asked Jan 23 in Inorganic Chemistry by VallieSwaffo (1.7k points)

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Calculate the magnetic moment of Ni(CN)4 2- complex ion.

asked Jan 23 in Inorganic Chemistry by AdaBethel250 (2.0k points)

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Calculate the magnetic moment of a transition metal complex, [Fe(CN)6]3-, with six cyanide ligands in an octahedral arrangement using crystal field theory. The complex is in a high-spin state and has three unpaired electrons.

asked Jan 23 in Inorganic Chemistry by ChristalMahl (2.0k points)

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Calculate the magnetic moment of a cobalt (II) ion, Co2+ in an octahedral field with a ligand field strength of 800 cm-1.

asked Jan 23 in Inorganic Chemistry by KraigQsr2950 (1.9k points)

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Calculate the magnetic moment of a chromium (III) complex with the formula [Cr(en)Cl(ClO4)2] (en = ethylenediamine) in its high-spin state at room temperature assuming it has an octahedral geometry.

asked Jan 23 in Inorganic Chemistry by Georgianna69 (2.2k points)

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Calculate the lattice energy of sodium chloride (NaCl) using Born-Haber cycle and Hess's law. Given the following data:- Enthalpy of sublimation of sodium (Na): +108.6 kJ/mol- Enthalpy of dissociation of chlorine (Cl2): +243.0 kJ/mol- Bond energy of Na-Cl bond: -412.0 kJ/mol- Ionization energy of sodium (Na): +496.0 kJ/mol- Electron affinity of chlorine (Cl): -349.0 kJ/mol- Heat of formation of sodium chloride (NaCl): -411.0 kJ/mol.

asked Jan 23 in Inorganic Chemistry by MartyLeSouef (2.0k points)

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Calculate the lattice energy of potassium oxide (K2O) given that the ionic radii of K+ and O2- are 152 pm and 140 pm respectively, and the lattice enthalpy of formation of K2O is -3803 kJ/mol.

asked Jan 23 in Inorganic Chemistry by BradyFlo6479 (2.5k points)

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Calculate the lattice energy of potassium chloride (KCl) using Born-Haber cycle, given the following information:- Ionization energy of potassium (K) = 419 kJ/mol- Electron affinity of chlorine (Cl) = -348 kJ/mol- Heat of sublimation of potassium (K) = 89 kJ/mol- Enthalpy of formation of potassium chloride (KCl) = -436 kJ/mol

asked Jan 23 in Inorganic Chemistry by TrevorE07525 (2.2k points)

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Calculate the lattice energy of NaF given the following information: the enthalpy of formation of NaF is -572.6 kJ/mol, the ionization energy of Na is 495.8 kJ/mol, the electron affinity of F is -328 kJ/mol, and the Madelung constant for NaF is 1.747.

asked Jan 23 in Inorganic Chemistry by TereseAbner (1.8k points)

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Calculate the lattice energy of MgO using the Born-Haber cycle given the following information: the standard enthalpies of formation of MgO(s), Mg(g), and O2(g) are -601.6 kJ/mol, 147.3 kJ/mol and 0 kJ/mol respectively, the ionisation energy of Mg(g) is 737.7 kJ/mol, the electron affinity of O2(g) is -141 kJ/mol, and the bond energy of the O2 molecule is 498 kJ/mol.

asked Jan 23 in Inorganic Chemistry by JamiFreame70 (1.7k points)

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Calculate the lattice energy of MgO using Born-Haber Cycle. Given the following information: - The enthalpy change of sublimation of Mg = +1472 kJ/mol- The first ionization energy of Mg = +738 kJ/mol- The second ionization energy of Mg = +1450 kJ/mol- The enthalpy change of electron affinity of O = -141 kJ/mol- The enthalpy change of formation of MgO = -601 kJ/mol- Assume that all other enthalpy changes are negligible.

asked Jan 23 in Inorganic Chemistry by MaribelLeepe (1.7k points)

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Calculate the lattice energy of MgO if the charge on the magnesium ion is +2 and the charge on the oxide ion is -2. The ionic radius of Mg2+ is 0.072 nm and the ionic radius of O2- is 0.140 nm.

asked Jan 23 in Inorganic Chemistry by HalinaAlderm (1.9k points)

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