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A 25.00-mL sample of an unknown H3PO4 solution is titrated with a 0.100 M NaOH solution. The equivalence point is reached when 52.58 mL of NaOH solution is added. What is the concentration of the un
What type of energy, kinetic or potential, is contained in chemicals? What aspect of chemicals is changed during a chemical reaction such that reactions relate to chemical energy?
Write the rate law for the following reaction, if it were to occur thru a single step mechanism
List four different foods that are sources of the bad form. Explain the function of the good form of this sterol in the body.
What is the stoichiometric coefficient for oxygen gas when the following reaction is balanced using the smallest whole number coefficients?
State the composition and the properties of the ketohexose derived from fruit jam. Describe the manner in which ketohexose acts as a reducing sugar in the test.
A solution is known to contain Bi3+ ion or Cd2+ ion or both. Describe the test(s) that could be used to seperate and identify these ions. Describe the results you would expect to see for each ion,
What is the rate constant for the reverse reaction at the same temperature?
Calculate the pH of a solution prepared by dissolving 200.0 mg of Ba(OH)2 (171.3 g/mol) to 100.0 mL of solution. Suppose that T= 24 °C and that it is an aqueous solution.
The flask is opened and more gas is added to the flask. The new pressure is 795 mm Hg and the temperature is now 26 °C. How many mol of gas are in the flask?
What compounds will be present after chemical reaction has occurred. Write out a balanced chemical reaction for this description, and name all compounds present.
A 25.00 mL portion of 0.100M Ag+ is added to a solution containing 0.0010 mole of Cl-. This solution is then titrated with 0.0500M SCN- to the end point. Calculate the volume of SCN- is required for
A patient receives 200mL of a 3.0% (m/v) amino acid solution twice a day. Express answer in 2 significant figures.
The solubility of silver sulfate, Ag2SO4, at a pressure of 37 atmospheres and 37 degrees, has been measured at 1.9 x 10^-2 mols/Liter. Calculate the solubility product of this compound at this tempe
Calculate the mass/volume percent of a NaCl solution in which 127g of NaCl is dissolved in enough water to give a total volume of 2.40L
Nitrogen and hydrogen gases react to form ammonia gas. N2(g) + 3 H2(g) 2 NH3(g) At a certain temperature and pressure 1.4 L of N2 reacts with 4.2 L of H2.
What is the Lewis structure of the covalent compound that contains one nitrogen atom, one hydrogen atom, and one carbon atom?
Write the Molecular equation, ionic equation net ionic equation and indicate the spectator ions for the precipitation reaction that occurs when aqueous solutions of silver nitrate and potassium pho
What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear? given 90.5KJ/mol
Kc is 4.2 at 1650 degrees C. If 0.5 mole of H2 and 0.3 mole of CO2 are injected into a 1.0 Lflask, What are the equilibriums of all species?
What equipment will I need and what measurements do I need to make in order to find enthalpy, entropy, and gibbs free energy?
Compare the properties of elements and compounds. Give two examples of each, including one example that exists in the human body.
A manger of small firm is considering whether to produce a new product that would require leasing equipment at 20,000 per month. Determine how large this number needs to be each month to make it p
Visualize where you want to finish. What numbers will top management need what decision needs to be made? What should the objective be?
If a power plant burning 10,000 metric tons of coal per day with 6% excess air emits stack gas containing 222 ppm by volume of NO, what is the daily output of NO(in metric tons /day) ? (Assume coal