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Calculate the amount of phosphoric acid, in moles, that is in 50.3 mL of a 4.62 mol/L phosphoric acid solution.
Calculate the volume in L of 2.91 mol/L CuSO4 (aq) solution that contains 0.33 mol copper (ll) sulfate
What is the molar concentration of a barium hydroxide solution when 3.99 g are dissolved in 180mL of hot, distilled water
Calculate the mass in grams of solute needed to prepare 47 mL of a 0.386 mol/L solution of Na2CO3
A liquid has a heat of vaporization of 30400 J/mol. At 271 K it has a vapor pressure of 102 mmHg. What is the normal boiling point of this liquid
What is E for the transition of an electron from n = 7 to n = 4 in a Bohr hydrogen atom. What is the frequency, of the spectral line produced
The equilibrium constant for the reaction represented below is 50 at 448 degrees Celsius
Find the unknown concentration for the following cell. Pb(s)| Pb2+(aq, ?)|| Pb2+(aq, 0.1 M)| Pb(s) E = 0.053 V Answer in units of M.
what are the boiling point and freezing point of a 2.47m solution of naphthalene in benzene? the boiling point and
What are the temperature-dependent properties of materials used in making thermometers?
calculate the theoretical yield of TiO2. If the percent yield of the reaction is 77.6%, how many grams of TiO 2 are actually formed?
If a Gammow bag is pressurized to .14atm above atmospheric pressure at an altitude of 25,000 ft, where atmospheric pressure is .37atm, explain what height column of mercury would be supported by the pressure inside the pressurized bag
The probability of finding an electron at a point in an atom is referred to as the probability density (). The spatial distribution of these densities can be derived from the radial wave function and angular wave function , then solving the Schrdinge..
a buffer is created by mixing equal concentrations of nh4 and nh3. calculate the volume of both solutions needed to
during the procedure you wash your crude product first with water than sodium bicarbonate solution. what is the purpose of each
in the olympics and other major athletic competitions a gc-ms is used to screen athletes for their use of banned
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