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Thermodynamics question
Let 0.001 mol of the strong electrolyte K2SO4 be dissolved into 1 L of water at 350 K. Which of the below statements is/are true? (Please explain)
(a) The solution will conduct electricity less well than pure water
(b) The mean ionic activity coefficient is greater than 1
(c) The mean ionic activity coefficient is less than 1
(d) The freezing point depression is equal to what would be observed if 0.003 mol CaCl2 were substituted for K2SO4
(e) The ionic strength of the solution is zero
(f) The inverse Debye length κ^-1 will decrease at higher temperatures
Calculate the heat evolved from a mixture of 14.6 L of sulfur dioxide at 1 atm and 294 K and 15 g of oxygen if the following reaction occurs: 2 SO2(g) + O2(g) ?? 2 SO3(g) ?H? = ?198 kJ
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A 100.mL sample of 0.200 M aqueous hydrochloric acid is added to 100.mL of 0.200 M aqueous ammonia in a calorimeter whose heat capacity excluding any water is 480.J/K. The subsequent reaction occurs when the two solutions are mixed.
Calculate the empirical formula for the following compound: potassium tartrate found in baking powder: 20.8% K, 2.7% H, 25.5% C, and 51.0% O
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What is the pressure in atmospheres inside a container of gas connected to a mercury-filled open-end manometer when the level in the arm connected to the container is 21.2cm higher than the level in the arm open
The decomposition of urea in 0.1 M HCl is first order in urea and first order overall. When [urea] = 0.200 M , the rate at 61.0 °C is 8.56 x 10-5 M/s. What is the concentration of urea in this solution after 4751 s if the starting concentration is..
In places where meteor impacts have occurred, such as Meteor Crater, other distinctly different SiO2 minerals occur, such as stishovite and coesite.
What is the molarity of the resulting solution when 20.0 mL of a 2.00 M aqueous solution is diluted by the addition of 30.0 mL of water
Based on the values of the standard reduction potentials, predict what happens when adding and write the relevant equations. copper to a 1 M solution of nitric acid zinc to a 1 M solution copper to a 1 M solution of hydrochloric acid zinc to a 1 M..
How do you calculate the pH of a solution given the concentration of OH- ions?
A) How many O2 molecules are needed to react with 6.09 of S? B) What is the theoretical yield of SO3 produced by the quantities described in Part A?
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