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Determine the molar mass of the solid acid if 0.2178 g of a dipodic solid acid is neutralized by 44.81 mL of0.0953 M NaOH. Explain in detail.
Calculate the wavelength of an electromagnetic wave the velocity of which is 3.0E+10 cm/sec and the frequency of which is 3.8E+13 Hz? Enter your answer as a length in cm.
Determine the numbers of energy is contained in one mole of photons (electromagnetic quanta) of frequency 6.3E+16 Hz?
Determine the maximum value possible for the magnetic quantum number if n, the principal quantum number, has a value of 4.
How do you determine the number of moles of NaOH present and the number of moles of HCl when 2.00 grams of solid NaOH are reacted with the 55 mL of 1.0 M HCl.
Illustrate the skeletal structure of the compound with molecular formula C3H4Cl4 whose proton NMR spectrum contains a downfield triplet and an up field triplet with relative integration of 2:2.
Liquids A which is having the molar mass 100g/mol and B which is having the molar mass 110g/mol form an ideal solution. A has a vapor pressure of 96mmHg and B a vapor pressure of 42 mmHg at 55oC.
A sample which is having 5.0 g of Cu(NO3)2 * nH2O is heated and 3.9 g of the anhydrous salt remains. Describe the value of n?
If 29.98 mL of sodium hydroxide was used to reach the end point*, calculate the molarity M of the sodium hydroxide solution? 0.150 grams of Potassium Hydrogen Phthalate (KHP), MW=204.2, was titrate
Determine the osmotic pressure of a solution prepared by mixing the equal volumes of these two solutions at the same temperature? Two aqueous urea solutions have osmotic pressures of 2.4 atm and 4.
At a certain temperature and pressure, 1.2 L of N2 reacts with the 3.6 L of H2. If all the N2 and H2 is consumed, explain the volume of NH3, at the same temperature and pressure will be formed?
At -10.3°C 26.40 g of ice is placed in the 37.37 g of water at 95.1°C in a perfectly insulated vessel. Suppose that the molar heat capacities for H2O(s) and H2O(l) are 37.5 J/K/mol and 75.3J
Use the following reaction for the decomposition of magnetite (a mineral) to answer the following questions. MgCO3(s) → MgO(s) + CO2(g) ΔHrxn = 117.3 kJ
Calculate the partition coefficient of benzoic acid in the water and methylene chloride? Is it constant value? If not what are the variables?
Explain how would you determine the number of moles of "M" (an unknown metal) from this equation if 9.250 x 10-4 mol ofH2 was formed and 0.0165g of the metal reacted?
Determine the principal quantum number of the s and p valence electrons in the following chemical elements? Enter your answer with integers separated by the commas and with no spaces, for example3,
Determine the numbers of grams of KCl will be required? A student needs to prepare the 181 mL of a 1.98 molar solution of the potassium chloride.
Determine the numbers of grams does it weigh when a standard basketball with a circ of 29.5 has 9 psi of Heat 25 degree C Identify the area of the basketball first or convert psi of He to atm?
Explain in detail that why the binding energy is larger in the crystal? For example, NaCl (g) and NaCl (s) are differing in the binding energy as well as their bond length.
How will the calculated molecular weight be affected if a small amount of an unknown fails to dissolve in benzophenone? Will it be too high, too low, or un-affected? Explain in detail.
How can obtain all the term symbols for the electron configuration? Calculate which of the term symbols has the lowest energy for this configuration.
By comparing this radiation to the spontaneous radiation that may persist for a long time, discuss why this spontaneous emission of radiation immediately stops.
Calculate the volume of 0.100 M MnO4- solution should be needed to titrate this solution to the endpoint? A student has 10.00 mL of a 0.500 M solution of vanadium in a250 mL flask. He believes
Determine what mass of the resulting precipitate will form from this reaction mixture? Determine the molar concentration of the excess reactant remaining in the solution after precipitation?
Determine the numbers of liters of chlorine gas at the 25 degrees C and 0.950 atm can be formed by the reaction of the 12.0 MnO2?