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An equilibrium mixture of PCl5(g), PCl3(g), and Cl2(g) has partial pressures of 217.0 Torr, 13.2 Torr, and 13.2 Torr, respectively. A quantity of Cl2(g) is injected into the mixture, and the total pressure jumps to 263.0 Torr (at the moment of mixing). The system then re-equilibrates. The appropriate chemical equation is PCl3+Cl2PCl5. Calculate the new partial pressures after equilibrium is re-established.
What mass of oxygen gas is required in order to release 6670 kJ of heat to the surroundings by the following reaction
What is the expected freezing point of a 0.50 m solution of Li2SO4 in water? Kf for water is 1.86°C/m.
how would you know a strong acid from a weak acid without looking at some data? for example hbr hi hci are all stong
When you convert units, how do you decide which part of the conversion factor is in the numerator and which is in the denominator
the weak base methylamine is titrated with 0.10 M HNO3. Calculate the pH after 20.0 mL and 60.0 mL acid addition (HNO3).
Consider the proposed mechanism for a reaction below. What is the rate law for the overall reaction?
Calculate the values of Avogadro's number and the Faraday assuming the charge in an electron is 1.602 x 10^-19 coulombs/electron. Also calculate the mass the magnesium anode have lost during the process. The answers will be a number.
What is the atomic weight of an element if 4.00 grams of it contain 2.98 x 10^22 atoms. A) 2.02 u B) 80.8 u C) 8.08 u D) 20.2 u E) 19.7 u
What is the product expected from the reaction of 1,3-butadiene and 3-sulfolene? Why is this not a major concern as a by-product
Explain why it is important to rinse out the burette and pipette with the reagent that it will hold before it is used in a titration
You have a 1 g/L solution of soil organic matter. The amount of fulvic acid is 2 times the amount of humic acid. You add 2 mM Cu to a final [Cu] =0.8 mM. Experiment at pH 6.5. Equation Cu2+ + 2HLi = CuLi2 + 2H+. Li = [FA]+[HA].
Determine the pH of (a) a 0.20 M NH3 solution, (b) a solution that is 0.20 M in NH3 and 0.30 M NH4Cl
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