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Problem: Suppose that a 0.10 M aqueous solution of a monoprotic acid HX has just 11 times the conductivity of a 0.0010 M aqueous solution of HX. What is the approximate dissociation constant of HX? (Hint: In thinking about this problem, consider what the ratio of the conductivities would be if HX were a strong acid and if HX were extremely weak, as limiting cases.)
a seed crystal of diameter d mm is placed in a solution of dissolved salt and new crystals are observed to nucleate
Consider the decomposition of N2O5 in carbon tetrachloride (CCl4) at 45?C 2N2O5(soln) 4NO2(g) + O2(g) The reaction is first-order in N2O5, with the specific rate constant 6.08 x 10-4/s. Calculate the reaction rate at these conditions.
Compute the air hap (K=0.0242W/mK) between two sheets of 5 mm glass (K=0.84W/mK). The convective heat transfer coefficient on both sides of the glass is 6W/m square K.
You make 1.00 L of a buffered solution (pH = 4.00) by mixing acetic acid and sodium acetate. You have 1.00 M solutions of each component of the buffered solution. What volume of each solution do you mix to make such a buffered solution
The Ka of a monoprotic weak acid is 5.16 × 10-3. What is the percent ionization of a 0.153 M solution of this acid?
What is the empirical formula of this compound ? If the molar mass is 118 g/mole what is the molecular formula?
Using appendix C, calculate the delta S values for the following reactions. In each case explain the sign of delta S.
what is the formula for the ion formed when each of the following elements loses its valence electrons.
What is the net redox reaction that occurs when Ag comes into contact with acidic K2Cr2O7? Which metal is the most reactive?
Balance the following equations and write the corresponding ionic and net ionic equations (if appropriate). Balance the equation
A student used the (CH3COOH) solution prepare in question 2 to titrate 25.00mL of 0.1246M of calcium hydroxide solution, what volume of CH3COOH solution was required for the titration
Problem- When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 31L of water for your group.
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